ICode9

import java.io.FileNotFoundException; import java.io.PrintStream; public class RedirectOutputStream{           public static void main(String[] args){                     try{                           PrintStream out=System.out;  

  import java.io.*; public class Main { public static void main(String[] args) throws FileNotFoundException { PrintStream ps = new PrintStream(new FileOutputStream("work.txt")); //改变输出流，输出到work.txt文件 System.setOu