Java.io.PrintStream.append() Method

Description

The java.io.PrintStream.append() method appends a subsequence of the specified character sequence to this output stream.

Declaration

Following is the declaration for java.io.PrintStream.append() method.

public PrintStream append(CharSequence csq,int start,int end)

Parameters

• csq − The character sequence to append. If csq is null, then the four characters "null" are appended to this output stream.

• start − The index of the first character in the subsequence.

• end − The index of the character following the last character in the subsequence.

Return Value

This method returns this output stream.

Exception

IndexOutOfBoundsException − If start or end are negative, start is greater than end, or end is greater than csq.length().

Example

The following example shows the usage of java.io.PrintStream.append() method.

package com.tutorialspoint;

import java.io.*;

public class PrintStreamDemo {
   public static void main(String[] args) {
      CharSequence csq = "Hello World";

      // create printstream object
      PrintStream ps = new PrintStream(System.out);

      // append our character sequences
      ps.append(csq, 6, 11);
      ps.append(csq, 0, 5);

      // print the result
      ps.flush();
      ps.close();
   }
}

Let us compile and run the above program, this will produce the following result −

WorldHello