Bài 14: Phương thức (method) trong Java

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package baitapvenha[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]text[/color][color=#007700].[/color][color=#0000bb]simpledateformat[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]date[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];[/color][color=#ff8000]/**** bài 1: tạo lớp hàng hóa gồm: tên hàng, mã hàng, giá hàng, số lượng. nếu mua* vào khoảng 8h -> 17h hàng ngày , được giảm giá 5% tạo phương thức tính tổng* tiền. tạo 1 đối tượng, nhập các giá trị từ màn hình console. in toàn bộ thông* tin đơn hàng ra ngoài màn hình console gồm: tên, mã, giá, số lượng, thời gian* mua.*/[/color][color=#007700]public class [/color][color=#0000bb]buoi14 [/color][color=#007700]{     public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {          [/color][color=#0000bb]hanghoa hh [/color][color=#007700]= new [/color][color=#0000bb]hanghoa[/color][color=#007700]();          [/color][color=#0000bb]hh[/color][color=#007700].[/color][color=#0000bb]nhap[/color][color=#007700]();          [/color][color=#0000bb]hh[/color][color=#007700].[/color][color=#0000bb]showinfor[/color][color=#007700]();    }} class [/color][color=#0000bb]hanghoa[/color][color=#007700]{      public [/color][color=#0000bb]string tenhang[/color][color=#007700],[/color][color=#0000bb]mahang[/color][color=#007700];      public [/color][color=#0000bb]float giahang[/color][color=#007700];      public [/color][color=#0000bb]int soluong[/color][color=#007700];      public [/color][color=#0000bb]void nhap[/color][color=#007700]() {          [/color][color=#0000bb]scanner sc [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);          [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"ma hang : "[/color][color=#007700]);[/color][color=#0000bb]mahang [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();          [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"ten hang: "[/color][color=#007700]);[/color][color=#0000bb]tenhang [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();          [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"so luong: "[/color][color=#007700]);[/color][color=#0000bb]soluong [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();          [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"don gia : "[/color][color=#007700]);[/color][color=#0000bb]giahang [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextfloat[/color][color=#007700]();          [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]close[/color][color=#007700]();     }      public [/color][color=#0000bb]void sale[/color][color=#007700]() {           [/color][color=#0000bb]date time [/color][color=#007700]= new [/color][color=#0000bb]date[/color][color=#007700]();           [/color][color=#ff8000]//khai bao dinh dang ngay va thang          [/color][color=#0000bb]simpledateformat dinhdangtime [/color][color=#007700]= new [/color][color=#0000bb]simpledateformat[/color][color=#007700]([/color][color=#dd0000]"hh:mm:ss"[/color][color=#007700]);          [/color][color=#0000bb]string hienthitime [/color][color=#007700]= [/color][color=#0000bb]dinhdangtime[/color][color=#007700].[/color][color=#0000bb]format[/color][color=#007700]([/color][color=#0000bb]time[/color][color=#007700]);          [/color][color=#0000bb]string hienthisale[/color][color=#007700][] =[/color][color=#0000bb]hienthitime[/color][color=#007700].[/color][color=#0000bb]split[/color][color=#007700]([/color][color=#dd0000]":"[/color][color=#007700]);          [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"
time: "[/color][color=#007700]+[/color][color=#0000bb]hienthitime[/color][color=#007700]);          if([/color][color=#0000bb]8[/color][color=#007700]<=[/color][color=#0000bb]integer[/color][color=#007700].[/color][color=#0000bb]parseint[/color][color=#007700]([/color][color=#0000bb]hienthisale[/color][color=#007700][[/color][color=#0000bb]0[/color][color=#007700]])&&[/color][color=#0000bb]integer[/color][color=#007700].[/color][color=#0000bb]parseint[/color][color=#007700]([/color][color=#0000bb]hienthisale[/color][color=#007700][[/color][color=#0000bb]0[/color][color=#007700]])<=[/color][color=#0000bb]17[/color][color=#007700]){               [/color][color=#0000bb]giahang [/color][color=#007700]= [/color][color=#0000bb]giahang [/color][color=#007700]- [/color][color=#0000bb]giahang[/color][color=#007700]*[/color][color=#0000bb]5[/color][color=#007700]/[/color][color=#0000bb]100[/color][color=#007700];               [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giờ vàng giảm giá 5% !"[/color][color=#007700]);          }     }      public [/color][color=#0000bb]float tongtien[/color][color=#007700]() {            [/color][color=#0000bb]sale[/color][color=#007700]();            return [/color][color=#0000bb]giahang [/color][color=#007700]*[/color][color=#0000bb]soluong[/color][color=#007700];     }      public [/color][color=#0000bb]void showinfor[/color][color=#007700](){          [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"mahang\ttenhang\tsoluong\tdongia\tthanhtien"[/color][color=#007700]+[/color][color=#0000bb]mahang[/color][color=#007700]+[/color][color=#dd0000]"\t"[/color][color=#007700]+[/color][color=#0000bb]tenhang[/color][color=#007700]+[/color][color=#dd0000]"\t"[/color][color=#007700]+[/color][color=#0000bb]soluong[/color][color=#007700]+[/color][color=#dd0000]"\t"[/color][color=#007700]+[/color][color=#0000bb]giahang[/color][color=#007700]+[/color][color=#dd0000]"\t"[/color][color=#007700]+[/color][color=#0000bb]tongtien[/color][color=#007700]());     }}[/color] 

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package lesson14[/color][color=#007700]; [/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700]; class [/color][color=#0000bb]hanghoa [/color][color=#007700]{    [/color][color=#0000bb]scanner scan01 [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);    private [/color][color=#0000bb]string tenhang [/color][color=#007700];    private [/color][color=#0000bb]string mahang[/color][color=#007700];    public [/color][color=#0000bb]long giahang[/color][color=#007700];    public [/color][color=#0000bb]int soluong[/color][color=#007700];    private [/color][color=#0000bb]byte thoigian[/color][color=#007700];        public [/color][color=#0000bb]void enter[/color][color=#007700](){        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap ten hang : "[/color][color=#007700]); [/color][color=#0000bb]tenhang [/color][color=#007700]= [/color][color=#0000bb]scan01[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap ma hang : "[/color][color=#007700]); [/color][color=#0000bb]mahang [/color][color=#007700]= [/color][color=#0000bb]scan01[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap gia hang : "[/color][color=#007700]); [/color][color=#0000bb]giahang [/color][color=#007700]= [/color][color=#0000bb]scan01[/color][color=#007700].[/color][color=#0000bb]nextlong[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap so luong : "[/color][color=#007700]); [/color][color=#0000bb]soluong [/color][color=#007700]= [/color][color=#0000bb]scan01[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();        do {            [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap thoi gian mua : "[/color][color=#007700]); [/color][color=#0000bb]thoigian [/color][color=#007700]= [/color][color=#0000bb]scan01[/color][color=#007700].[/color][color=#0000bb]nextbyte[/color][color=#007700]();        }while (([/color][color=#0000bb]thoigian [/color][color=#007700]< [/color][color=#0000bb]0[/color][color=#007700])  || ([/color][color=#0000bb]thoigian[/color][color=#007700]>[/color][color=#0000bb]24[/color][color=#007700]));                                   }        public [/color][color=#0000bb]long tongtien[/color][color=#007700]([/color][color=#0000bb]long giahang [/color][color=#007700], [/color][color=#0000bb]long soluong[/color][color=#007700]) {                if (([/color][color=#0000bb]thoigian [/color][color=#007700]> [/color][color=#0000bb]8[/color][color=#007700]) && ([/color][color=#0000bb]thoigian [/color][color=#007700]<[/color][color=#0000bb]17[/color][color=#007700])) {            return ([/color][color=#0000bb]long[/color][color=#007700]) ([/color][color=#0000bb]giahang[/color][color=#007700]*[/color][color=#0000bb]soluong[/color][color=#007700]*[/color][color=#0000bb]0.95[/color][color=#007700]);        }else{            return [/color][color=#0000bb]giahang[/color][color=#007700]*[/color][color=#0000bb]soluong[/color][color=#007700];        }                    }    public [/color][color=#0000bb]void inhoadon[/color][color=#007700]() {        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]""[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"day la hoa don"[/color][color=#007700]);         [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]""[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"ten hang hoa : " [/color][color=#007700]+ [/color][color=#0000bb]tenhang[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"ma hang : " [/color][color=#007700]+ [/color][color=#0000bb]mahang[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"gia hang : "[/color][color=#007700]+ [/color][color=#0000bb]giahang[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"so luong : " [/color][color=#007700]+ [/color][color=#0000bb]soluong[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"thoi gian mua : "[/color][color=#007700]+[/color][color=#0000bb]thoigian[/color][color=#007700]);                    }}            public class [/color][color=#0000bb]lesson14 [/color][color=#007700]{        public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {        [/color][color=#0000bb]hanghoa a [/color][color=#007700]= new [/color][color=#0000bb]hanghoa[/color][color=#007700]();        [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]enter[/color][color=#007700]();        [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]inhoadon[/color][color=#007700]();                        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tong tien : "[/color][color=#007700]+[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]tongtien[/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giahang[/color][color=#007700], [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]soluong[/color][color=#007700]));                    }    }[/color] 

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[htpsales]

public class bai1_unit14 {

public static void main(string[] args) {
hanghoa a1 = new hanghoa();
a1.nhap();
a1.show();

}
}




class hanghoa {
public string ten;
public string ma;
public double gia;
public int soluong;
public int time;

public void nhap() {
scanner input = new scanner(system.in);
system.out.print("ten hang hoa:");
ten = input.nextline();
system.out.print("ma hang hoa:");
ma = input.nextline();
system.out.print("gia hang hoa:");
gia = input.nextdouble();
system.out.print("so luong hang hoa:");
soluong = input.nextint();

do {
system.out.println("thoi gian mua hang:");
time = input.nextint();
} while((time < 0) && (time > 24));

if(time >= 8 && time <=17) {
system.out.println("gia hang hoa da duoc giam 5% khi mua "
+ "trong khoang thoi gian 8h -> 17h");
gia = gia*0.95;
}
}

public void show() {
system.out.println("don hang da mua");
system.out.println("ten:" + ten);
system.out.println("ma:" + ma);
system.out.println("gia:" + gia);
system.out.println("so luong:" + soluong);
system.out.println("thoi gian mua:" + time);
system.out.println("tong thiet hai:" + sum());
}

public double sum() {
return gia*soluong;
}
}
[/code]

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import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];    class [/color][color=#0000bb]hanghoa [/color][color=#007700]{public [/color][color=#0000bb]string tenhang[/color][color=#007700];public [/color][color=#0000bb]string mahang[/color][color=#007700];public [/color][color=#0000bb]int giahang[/color][color=#007700];public [/color][color=#0000bb]int soluong[/color][color=#007700];public [/color][color=#0000bb]int giomuahang[/color][color=#007700];    public [/color][color=#0000bb]void showthongtin[/color][color=#007700]([/color][color=#0000bb]string ten[/color][color=#007700], [/color][color=#0000bb]string ma[/color][color=#007700], [/color][color=#0000bb]int gia[/color][color=#007700], [/color][color=#0000bb]int sl[/color][color=#007700], [/color][color=#0000bb]int gm[/color][color=#007700]) {[/color][color=#0000bb]scanner nhapdl [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"
thông tin mua hàng : "[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tên hàng : " [/color][color=#007700]+ [/color][color=#0000bb]ten[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"mã : " [/color][color=#007700]+ [/color][color=#0000bb]ma[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá : " [/color][color=#007700]+ [/color][color=#0000bb]gia [/color][color=#007700]+ [/color][color=#dd0000]" đồng"[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"số lượng : " [/color][color=#007700]+ [/color][color=#0000bb]sl[/color][color=#007700]);if ([/color][color=#0000bb]gm [/color][color=#007700]>= [/color][color=#0000bb]8 [/color][color=#007700]&& [/color][color=#0000bb]gm [/color][color=#007700]<= [/color][color=#0000bb]17[/color][color=#007700]) {[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tổng tiền phải trả : " [/color][color=#007700]+ [/color][color=#0000bb]gia [/color][color=#007700]* [/color][color=#0000bb]sl [/color][color=#007700]* [/color][color=#0000bb]0.95[/color][color=#007700]+ [/color][color=#dd0000]" đồng"[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"được giảm 5%"[/color][color=#007700]);} else {[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tổng tiền phải trả : " [/color][color=#007700]+ [/color][color=#0000bb]gia [/color][color=#007700]* [/color][color=#0000bb]sl [/color][color=#007700]+ [/color][color=#dd0000]" đồng"[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"không được giảm giá"[/color][color=#007700]);}    }}    public class [/color][color=#0000bb]bai14_3_static [/color][color=#007700]{public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {[/color][color=#0000bb]hanghoa a [/color][color=#007700]= new [/color][color=#0000bb]hanghoa[/color][color=#007700]();[/color][color=#0000bb]scanner nhapdl [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhập tên hàng : "[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]tenhang [/color][color=#007700]= [/color][color=#0000bb]nhapdl[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhập mã hàng : "[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]mahang [/color][color=#007700]= [/color][color=#0000bb]nhapdl[/color][color=#007700].[/color][color=#0000bb]next[/color][color=#007700]();[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhập giá hàng : "[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giahang [/color][color=#007700]= [/color][color=#0000bb]nhapdl[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhập số lượng : "[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]soluong [/color][color=#007700]= [/color][color=#0000bb]nhapdl[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhập thời gian mua : "[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giomuahang [/color][color=#007700]= [/color][color=#0000bb]nhapdl[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();while ([/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giomuahang [/color][color=#007700]<= [/color][color=#0000bb]0 [/color][color=#007700]|| [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giomuahang [/color][color=#007700]>= [/color][color=#0000bb]24[/color][color=#007700]) {[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"vui lòng chỉ nhập từ 0h đến 24h"[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"==> nhập lại : "[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giomuahang [/color][color=#007700]= [/color][color=#0000bb]nhapdl[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();}[/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]showthongtin[/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]tenhang[/color][color=#007700], [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]mahang[/color][color=#007700], [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giahang[/color][color=#007700], [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]soluong[/color][color=#007700], [/color][color=#0000bb]a[/color][color=#007700].[/color][color=#0000bb]giomuahang[/color][color=#007700]);    }}[/color] 

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[vanphongaoquan1]

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[color=#000000]
 import java[/color][color=#007700].[/color][color=#0000bb]text[/color][color=#007700].[/color][color=#0000bb]simpledateformat[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]date[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];  class [/color][color=#0000bb]hanghoa [/color][color=#007700]{      public static [/color][color=#0000bb]string tenhang[/color][color=#007700];    public static [/color][color=#0000bb]int mahang[/color][color=#007700];    public static [/color][color=#0000bb]int giahang[/color][color=#007700];    public static [/color][color=#0000bb]int soluong[/color][color=#007700];      public static [/color][color=#0000bb]int tongtien[/color][color=#007700]([/color][color=#0000bb]int giahang[/color][color=#007700], [/color][color=#0000bb]int soluong[/color][color=#007700]) {        return ([/color][color=#0000bb]giahang [/color][color=#007700]* [/color][color=#0000bb]soluong[/color][color=#007700]);    }      public static [/color][color=#0000bb]void showhoadon[/color][color=#007700]() {        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"ten hang :" [/color][color=#007700]+ [/color][color=#0000bb]tenhang[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"ma hang :" [/color][color=#007700]+ [/color][color=#0000bb]mahang[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"soluong hang :" [/color][color=#007700]+ [/color][color=#0000bb]soluong[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tong tien hang :" [/color][color=#007700]+ [/color][color=#0000bb]tongtien[/color][color=#007700]([/color][color=#0000bb]giahang[/color][color=#007700], [/color][color=#0000bb]soluong[/color][color=#007700]));         if ([/color][color=#0000bb]thoigian[/color][color=#007700]() >= [/color][color=#0000bb]8 [/color][color=#007700]&& [/color][color=#0000bb]thoigian[/color][color=#007700]() <= [/color][color=#0000bb]17[/color][color=#007700]) {            [/color][color=#0000bb]int n [/color][color=#007700]= [/color][color=#0000bb]tongtien[/color][color=#007700]([/color][color=#0000bb]giahang[/color][color=#007700], [/color][color=#0000bb]soluong[/color][color=#007700]);            [/color][color=#0000bb]int m [/color][color=#007700]= ([/color][color=#0000bb]n [/color][color=#007700]* [/color][color=#0000bb]5 [/color][color=#007700]/ [/color][color=#0000bb]100[/color][color=#007700]);            [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"khuyen mai la " [/color][color=#007700]+ [/color][color=#0000bb]m[/color][color=#007700]);            [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"so tien phai tra " [/color][color=#007700]+ ([/color][color=#0000bb]n [/color][color=#007700]- [/color][color=#0000bb]m[/color][color=#007700]));        }     }    public static [/color][color=#0000bb]int thoigian[/color][color=#007700]() {        [/color][color=#0000bb]date thoigian [/color][color=#007700]= new [/color][color=#0000bb]date[/color][color=#007700]();        [/color][color=#0000bb]simpledateformat dinhdangthoigian [/color][color=#007700]= new [/color][color=#0000bb]simpledateformat[/color][color=#007700]([/color][color=#dd0000]"hh"[/color][color=#007700]);        [/color][color=#0000bb]string m [/color][color=#007700]=[/color][color=#0000bb]dinhdangthoigian[/color][color=#007700].[/color][color=#0000bb]format[/color][color=#007700]([/color][color=#0000bb]thoigian[/color][color=#007700].[/color][color=#0000bb]gettime[/color][color=#007700]());        [/color][color=#0000bb]int t[/color][color=#007700]=[/color][color=#0000bb]integer[/color][color=#007700].[/color][color=#0000bb]parseint[/color][color=#007700]([/color][color=#0000bb]m[/color][color=#007700]);        return [/color][color=#0000bb]t[/color][color=#007700];    }} public class [/color][color=#0000bb]demophuongthuc [/color][color=#007700]{     public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {        [/color][color=#0000bb]scanner sc [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhap ten hang "[/color][color=#007700]);        [/color][color=#0000bb]hanghoa[/color][color=#007700].[/color][color=#0000bb]tenhang [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhap ma hang "[/color][color=#007700]);        [/color][color=#0000bb]hanghoa[/color][color=#007700].[/color][color=#0000bb]mahang [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhap soluong hang "[/color][color=#007700]);        [/color][color=#0000bb]hanghoa[/color][color=#007700].[/color][color=#0000bb]soluong [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nhap gia hang "[/color][color=#007700]);        [/color][color=#0000bb]hanghoa[/color][color=#007700].[/color][color=#0000bb]giahang [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"----------------------------------------------------"[/color][color=#007700]);        [/color][color=#0000bb]hanghoa[/color][color=#007700].[/color][color=#0000bb]showhoadon[/color][color=#007700]();     }} [/color] 

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[vemaybaycanhchimviet]

thời gian lấy từ hệ thống nhé bạn, không phải bắt chủ mua nhập, vì nếu lỡ 1 phút thì chủ mua cũng ăn gian

[minhitc]

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