Java.lang.StringBuilder.append() Method

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Description

The java.lang.StringBuilder.append(Object obj) method appends the string representation of the Object argument.

Declaration

Following is the declaration for java.lang.StringBuilder.append() method

public StringBuilder append(Object obj)

Parameters

obj − This is an object.

Return Value

This method returns a reference to this object.

Exception

NA

Example

The following example shows the usage of java.lang.StringBuilder.append() method.

package com.tutorialspoint;

import java.lang.*;

public class StringBuilderDemo {

   public static void main(String[] args) {
  
      StringBuilder str = new StringBuilder("Compile ");
      System.out.println("string = " + str);

      Object obVal = "Online";
      
      // appends the Object value
      str.append(obVal);

      // print the StringBuilder after appending
      System.out.println("After append = " + str);
   }      
}  

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

string = Compile
After append = Compile Online