此次代码可实现随机生成20个整数,将这20个数从小到大进行排列
package biji;
import java.util.Arrays;
import java.util.Random;
public class demo11 {
public static void main(String[] args) {
Random random = new Random();
int[] a=new int[20];
for (int i = 0; i < a.length; i++) {
a[i]= random.nextInt(100);
}
System.out.println(Arrays.toString(a));
Arrays.sort(a);
System.out.println(Arrays.toString(a));
}
}
代码运行如下: