Question

关于java的问题，具体程序编写

编程实现35选7彩票销售程序。用户从键盘输入要买彩票的注数n，程序随机产生n注号码并输出。每注号码为7个1～35的随机整数，每注7个号码中不能有重复号码。要具体程序！

Answer 1

import java.util.Scanner; public class test { public static void main( String[] args ) { int[] a = new int[35]; for ( int i = 0; i < 35; ++i ) { a[i] = i + 1; } int n; Scanner s = new Scanner( System.in ); n = s.nextInt(); select( a, n ); } static void select( int[] a, int n ) { for ( int i = 0; i < n; ++i ) { shuffle( a ); System.out.print( "第"+ (i+1) +"注：" ); for ( int j = 0; j < 7; ++j ) { System.out.print( a[j] + " " ); } System.out.println(); } } static void shuffle( int[] a ) { int t, tmp; for ( int i = 0; i < a.length; ++i ) { t = (int)(Math.random()*35); tmp = a[t]; a[t] = a[i]; a[i] = tmp; } } }