JAVA题!急!!在线等!

import java.util.Random;
import java.util.Scanner;

public class AverageTest {

public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String ch="";
do{
System.out.print("求几个数的平均值:");
int n=sc.nextInt();
Random rand=new Random();
int a[]=new int[n];
for(int i=0;i a[i]=rand.nextInt(90)+10;
}
int sum=0;
int i=0;

while(i sum+=a[i];
i++;
}
System.out.println("平均值是: "+sum/n);
sc.nextLine();
System.out.print("是否继续(y/n)");
ch=sc.nextLine();

}while(ch.equals("y"));
}

}

已经给楼主写好了..

用到了三种循环...

呵呵...

祝楼主早日成功哈!!!