随意输入若干数字，求和

import java.util.Scanner;

public class Sum_Avg {

public static void main(String args[]){

Scanner input=new Scanner(System.in);
double sum=0;
int i=0;
/*System.out.println("请输入数字");
double x=input.nextDouble();
while(x!=0){

   
sum+=x;
i++;
x=input.nextDouble();

}

System.out.println("和是"+sum+"\n"+"平均数是"+sum/i);*/

System.out.println("请输入两个字符串来验证两次输入字符串的指向");

String y=input.nextLine();

String  z=y;

y=input.nextLine();

System.out.println(z.equals(y));

System.out.println("z"+z);

}

}