input output in java code example

Example 1: output java

class Output {
    public static void main(String[] args) {
    	
        System.out.println("1. println ");
        System.out.println("2. println ");
    	
        System.out.print("1. print ");
        System.out.print("2. print");
    }
}

Example 2: output statement java

System.out.println("Hello World");

Example 3: IO STREAMS in java

import java.io.*;
public class CopyFile {

   public static void main(String args[]) throws IOException {  
      FileInputStream in = null;
      FileOutputStream out = null;

      try {
         in = new FileInputStream("input.txt");
         out = new FileOutputStream("output.txt");
         
         int c;
         while ((c = in.read()) != -1) {
            out.write(c);
         }
      }finally {
         if (in != null) {
            in.close();
         }
         if (out != null) {
            out.close();
         }
      }
   }
}