TestWhile

import java.io.*;public class TestWhile //从键盘读入一系列整数并计算其和{ public static void main(String args[]) {  int data;  int sum=0;  System.out.println("Enter an int value");  data=MyInput.readInt();  while(data!=0)  {   sum+=data;   System.out.println("Enter an int value,the program exits if the input is 0");   data=MyInput.readInt();  }  System.out.println("The sum is"+sum); }}class MyInput{ public static String readString() {  BufferedReader br=new BufferedReader(new InputStreamReader(System.in),1);  @SuppressWarnings("unused")int k;  //声明一个存放整型且名是k的变量  @SuppressWarnings("unused")float x,y;  //声明浮点型变量x,y  @SuppressWarnings("unused")String studentname="WangXin";  String string="";  try  {   string=br.readLine();  }catch(IOException ex)  {   System.out.println(ex);  }  return string; } public static int readInt() {  return Integer.parseInt(readString()); } public static double readDouble() {  return Double.parseDouble(readString());  } }