outputstreamwrite.java~47~

来自「提供了常用的JAVA技术的示例」· JAVA~47~ 代码 · 共 25 行

package OutputStreamWriter;

import java.io.*;

public class OutputStreamWrite {
    public static void main(String[] args)throws IOException {
      BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
      BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
      //int i=Integer.parseInt(in.readLine());
      int count=0;
      while(count<4){
          try{
            int i=Integer.parseInt(in.readLine());
            System.out.println(i);
          }
          catch(NumberFormatException e){
            //System.out.println(e);
            System.out.println("输入错误，请重新输入.");
          }
          count++;
          if(count==4)
          System.out.println("input is over!");
      }
    }
}