Java - Long Class decode() Method

Long class decode() method: Here, we are going to learn about the decode() method of Long class with its syntax and example. By Preeti Jain Last updated : March 20, 2024

Long class decode() method

  • decode() method is available in java.lang package.
  • decode() method is used to decode the given String value into a Long value.
  • decode() method is a static method, it is accessible with the class name too and if we try to access the method with the class object then also we will not get an error.
  • decode() method may throw a NumberFormatException at the time of decoding a String to a Long.
    NumberFormatException: In this exception, if the given string parameter does not have a parsable integer.

Syntax

    public static Long decode(String str);

Parameters

  • String str – represents the String to decode.

Return Value

The return type of this method is long, it returns the Long holding a long value represented by the argument of String type.

Example

// Java program to demonstrate the example 
// of decode(String str) method of Long class

public class DecodeOfLongClass {
    public static void main(String[] args) {
        // Variables initialization
        long l = 100;
        String str = "20";

        // Long object initialized with "long" value
        Long ob1 = new Long(l);

        // Display ob1 result
        System.out.println("ob1: " + ob1);

        // It returns an Long object holding the long value 
        // denoted by the given String argument by calling 
        // ob1.decode(str)
        Long result = ob1.decode(str);

        // Display result
        System.out.println("ob1.decode(str) :" + result);
    }
}

Output

ob1: 100
ob1.decode(str) :20

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