Java.lang.StringBuilder.append() Method

Description

The java.lang.StringBuilder.append(boolean b) method appends the string representation of the boolean argument to the sequence.

Declaration

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

public StringBuilder append(boolean b)

Parameters

b − This is the boolean value.

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);

      // appends the boolean argument as string to the StringBuilder
      str.append(true);
      
      // print the StringBuilder after appending
      System.out.println("After append = " + str);

      str = new StringBuilder("abcd ");
      System.out.println("string = " + str);
      
      // appends the boolean argument as string to the String Builder    
      str.append(false);
      
      // print the string Builder 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 true
string = abcd
After append = abcd false