/*
* -bai minh cho phep test du lieu nhap vao (so sinh vien) neu la ki tu hoac
* so sinh vien <=0 se yeu cau nhap lai
* - sau khi nhap va dua ra danh sach sinh vien chuong trinh yeu cau chon cong viecj muon thuc hien
* --> 1 sap xep ten sinh vien theo a,b,c
* --> tim kiem sinh vien theo 2 truong hop ( khong phan biet chu hoa va
* thuong):
* --> tim kiem chinh xac
* --> tim kiem theo tu khoa
*/
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>bai 25 - string (move your mouse to reveal the content)</noscript>
bai 25 - string (open)
bai 25 - string (close)
</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>
Mã nguồn PHP:
[color=#000000]
package baitapvenha[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]io[/color][color=#007700].[/color][color=#0000bb]ioexception[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]arrays[/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]/*** tạo 1 mảng các chuỗi là danh sách tên học sinh. nhập vào 1 chuỗi nào đó. sắp* xếp danh sách tên theo thứ tự bảng chữ cái a, b, c..... tìm kiếm tất cả các* tên học sinh giống tuyệt đối hoặc gần giống với từ khóa tìm kiếm đều được* hiện ra. ví dụ nhập từ khóa tìm kiếm: "hoang" thì sẽ hiện ra tất cả các tên* sau (nếu như chúng có trong danh sách): hoang thi yen, nguyen hoang hiep, vu* van hoang, hoang, hoang, hoang van tien, ... (kết quả tìm kiếm không phân* biệt chữ hoa và chữ thường!)*/[/color][color=#007700]public class [/color][color=#0000bb]buoi25_string [/color][color=#007700]{ static [/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]); 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]buoi25_string test [/color][color=#007700]= new [/color][color=#0000bb]buoi25_string[/color][color=#007700](); [/color][color=#0000bb]int n [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; do { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"input the number n = "[/color][color=#007700]); try { [/color][color=#0000bb]n [/color][color=#007700]= [/color][color=#0000bb]integer[/color][color=#007700].[/color][color=#0000bb]parseint[/color][color=#007700]([/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]()); } catch ([/color][color=#0000bb]exception e[/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]"
error: " [/color][color=#007700]+ [/color][color=#0000bb]e[/color][color=#007700]); } if ([/color][color=#0000bb]n [/color][color=#007700]<= [/color][color=#0000bb]0[/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]"
the number student have to > 0.
input again:
"[/color][color=#007700]); } while ([/color][color=#0000bb]n [/color][color=#007700]<= [/color][color=#0000bb]0[/color][color=#007700]); [/color][color=#0000bb]string dshocsinh[/color][color=#007700][] = new [/color][color=#0000bb]string[/color][color=#007700][[/color][color=#0000bb]n[/color][color=#007700]]; [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]nhap[/color][color=#007700]([/color][color=#0000bb]n[/color][color=#007700], [/color][color=#0000bb]dshocsinh[/color][color=#007700]); [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]xuat[/color][color=#007700]([/color][color=#0000bb]n[/color][color=#007700], [/color][color=#0000bb]dshocsinh[/color][color=#007700]); [/color][color=#0000bb]int choose [/color][color=#007700]= [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]choose[/color][color=#007700](); [/color][color=#0000bb]boolean b [/color][color=#007700]= [/color][color=#0000bb]true[/color][color=#007700]; while([/color][color=#0000bb]b[/color][color=#007700]){ switch ([/color][color=#0000bb]choose[/color][color=#007700]) { case [/color][color=#0000bb]1[/color][color=#007700]: [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]sapxep[/color][color=#007700]([/color][color=#0000bb]n[/color][color=#007700], [/color][color=#0000bb]dshocsinh[/color][color=#007700]); [/color][color=#0000bb]choose [/color][color=#007700]= [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]choose[/color][color=#007700](); break; case [/color][color=#0000bb]2[/color][color=#007700]: [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]searchtuyetdoi[/color][color=#007700]([/color][color=#0000bb]n[/color][color=#007700], [/color][color=#0000bb]dshocsinh[/color][color=#007700])); [/color][color=#0000bb]choose [/color][color=#007700]= [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]choose[/color][color=#007700](); break; case [/color][color=#0000bb]3[/color][color=#007700]: [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]search[/color][color=#007700]([/color][color=#0000bb]n[/color][color=#007700], [/color][color=#0000bb]dshocsinh[/color][color=#007700])); [/color][color=#0000bb]choose [/color][color=#007700]= [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]choose[/color][color=#007700](); break; case [/color][color=#0000bb]4[/color][color=#007700]: [/color][color=#0000bb]b [/color][color=#007700]= [/color][color=#0000bb]false[/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]"exit application! "[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].exit([/color][color=#0000bb]0[/color][color=#007700]); default: [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"the number \"" [/color][color=#007700]+ [/color][color=#0000bb]choose [/color][color=#007700]+[/color][color=#dd0000]"\" not valid in system! please try again:"[/color][color=#007700]); [/color][color=#0000bb]choose [/color][color=#007700]= [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]choose[/color][color=#007700](); } } } public [/color][color=#0000bb]void nhap[/color][color=#007700]([/color][color=#0000bb]int n[/color][color=#007700], [/color][color=#0000bb]string a[/color][color=#007700][]) { for ([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/color][color=#007700]++) { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]" student " [/color][color=#007700]+ [/color][color=#0000bb]i [/color][color=#007700]+ [/color][color=#dd0000]": "[/color][color=#007700]); [/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]] = [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700](); } } public [/color][color=#0000bb]void xuat[/color][color=#007700]([/color][color=#0000bb]int n[/color][color=#007700], [/color][color=#0000bb]string a[/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]"array student: "[/color][color=#007700]); for ([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/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]i [/color][color=#007700]+ [/color][color=#dd0000]" : " [/color][color=#007700]+ [/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]]); } } public [/color][color=#0000bb]void sapxep[/color][color=#007700]([/color][color=#0000bb]int n[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]a[/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]"
array student after sort: "[/color][color=#007700]); [/color][color=#0000bb]arrays[/color][color=#007700].[/color][color=#0000bb]sort[/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700]); [/color][color=#0000bb]xuat[/color][color=#007700]([/color][color=#0000bb]n[/color][color=#007700], [/color][color=#0000bb]a[/color][color=#007700]); } public [/color][color=#0000bb]string searchtuyetdoi[/color][color=#007700]([/color][color=#0000bb]int n[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]a[/color][color=#007700]) { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"input full name for search : "[/color][color=#007700]); [/color][color=#0000bb]string s [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700](); [/color][color=#0000bb]string search [/color][color=#007700]= [/color][color=#dd0000]""[/color][color=#007700]; [/color][color=#0000bb]int dem [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; for ([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/color][color=#007700]++) { if ([/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]].[/color][color=#0000bb]equalsignorecase[/color][color=#007700]([/color][color=#0000bb]s[/color][color=#007700])) { [/color][color=#0000bb]search [/color][color=#007700]+= [/color][color=#dd0000]" " [/color][color=#007700]+ [/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]]+[/color][color=#dd0000]"; "[/color][color=#007700]; [/color][color=#0000bb]dem[/color][color=#007700]++; } } if ([/color][color=#0000bb]dem [/color][color=#007700]!= [/color][color=#0000bb]0[/color][color=#007700]) return [/color][color=#dd0000]"==>have " [/color][color=#007700]+ [/color][color=#0000bb]dem [/color][color=#007700]+ [/color][color=#dd0000]" student with name " [/color][color=#007700]+ [/color][color=#0000bb]s [/color][color=#007700]+ [/color][color=#dd0000]":
" [/color][color=#007700]+ [/color][color=#0000bb]search[/color][color=#007700]; return [/color][color=#dd0000]"==>no student have name " [/color][color=#007700]+ [/color][color=#0000bb]s[/color][color=#007700]; } public [/color][color=#0000bb]string search[/color][color=#007700]([/color][color=#0000bb]int n[/color][color=#007700], [/color][color=#0000bb]string a[/color][color=#007700][]) { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"input the key for search: "[/color][color=#007700]); [/color][color=#0000bb]string s [/color][color=#007700]= ([/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]()).[/color][color=#0000bb]tolowercase[/color][color=#007700](); [/color][color=#0000bb]string search [/color][color=#007700]= [/color][color=#dd0000]""[/color][color=#007700]; [/color][color=#0000bb]int dem [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; for ([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/color][color=#007700]++) { if ([/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]].[/color][color=#0000bb]tolowercase[/color][color=#007700]().[/color][color=#0000bb]indexof[/color][color=#007700]([/color][color=#0000bb]s[/color][color=#007700]) != -[/color][color=#0000bb]1[/color][color=#007700]) { [/color][color=#0000bb]search [/color][color=#007700]+= [/color][color=#dd0000]" " [/color][color=#007700]+ [/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]]+[/color][color=#dd0000]"; "[/color][color=#007700]; [/color][color=#0000bb]dem[/color][color=#007700]++; } } if ([/color][color=#0000bb]dem [/color][color=#007700]!= [/color][color=#0000bb]0[/color][color=#007700]) return [/color][color=#dd0000]"==>have " [/color][color=#007700]+ [/color][color=#0000bb]dem [/color][color=#007700]+ [/color][color=#dd0000]" student with key " [/color][color=#007700]+ [/color][color=#0000bb]s [/color][color=#007700]+ [/color][color=#dd0000]":
" [/color][color=#007700]+ [/color][color=#0000bb]search[/color][color=#007700]; return [/color][color=#dd0000]"==>no student have key " [/color][color=#007700]+ [/color][color=#0000bb]s[/color][color=#007700]; } public [/color][color=#0000bb]void [/color][color=#007700]list() { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
==== list function ==== "[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
1. sort"[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
2. search by name excectly"[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
3. search by key"[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
4. exit"[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
=> enter the choose: "[/color][color=#007700]); } public [/color][color=#0000bb]int choose[/color][color=#007700]() { [/color][color=#0000bb]int choose [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; list(); try { [/color][color=#0000bb]choose [/color][color=#007700]= [/color][color=#0000bb]integer[/color][color=#007700].[/color][color=#0000bb]parseint[/color][color=#007700]([/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]()); } catch ([/color][color=#0000bb]exception e[/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]"
error: " [/color][color=#007700]+ [/color][color=#0000bb]e[/color][color=#007700]); } return [/color][color=#0000bb]choose[/color][color=#007700]; }}[/color]
</blockquote></div>
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