36选7小程序

package com.math.test;

import java.util.Arrays;
import java.util.Random;

public class MathTest {

public static void main(String[] args) {

int offset = 0;
int[] data = new int[7];
Random r = new Random();
while(offset < 7){
int i = r.nextInt(37);
if(!isRepeat(data,i)){
data[offset++] = i;
}
}

Arrays.sort(data);
for(int m = 0; m < data.length; m++){
System.out.print(data[m] + ",");
}
}

public static boolean isRepeat(int[] data, int num){
if(num == 0){
return true;
}
for(int i = 0; i < data.length; i++){
if(data[i] == num){
return true;
}
}
return false;
}
}