Java.lang.StringBuilder.append() Method

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Description

The java.lang.StringBuilder.append(double d) method appends the string representation of the double argument to this sequence.

Declaration

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

public StringBuilder append(double d)

Parameters

d − This is the double 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("tuts ");
      System.out.println("string = " + str);

      // appends the double argument as string to the StringBuilder
      str.append(30.100000001d);
      
      // print the StringBuilder after appending
      System.out.println("After append = " + str);

      str = new StringBuilder("abcd ");
      System.out.println("string = " + str);
      
      // appends the double argument as string to the StringBuilder
      str.append(15.12d);
      
      // 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 = tuts
After append = tuts 30.100000001
string = abcd
After append = abcd 15.12