Java.lang.Double.valueOf() Method

Description

The java.lang.Double.valueOf(String s) method returns a Double object holding the double value represented by the argument string s.If s is null, then a NullPointerException is thrown.

Declaration

Following is the declaration for java.lang.Double.valueOf() method

public static Double valueOf(String s) throws NumberFormatException

Parameters

• s -- This is the string to be parsed.

Return Value

This method returns a Double object holding the value represented by the String argument.

Exception

• NumberFormatException -- if the string does not contain a parsable number.

Example

The following example shows the usage of java.lang.Double.valueOf() method.

package com.tutorialspoint;

import java.lang.*;

public class DoubleDemo {

   public static void main(String[] args) {

     Double d = new Double("6.5");
     String str = "55";
	 
     /* returns a Double object holding the value represented 
     by str */
     System.out.println("Value = " +  d.valueOf(str));
   }
}  

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

Value = 55.0