Java.lang.Integer.decode() Method

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Description

The java.lang.Integer.decode() method decodes a String into an Integer. It accepts decimal, hexadecimal, and octal number.

Declaration

Following is the declaration for java.lang.Integer.decode() method

public static Integer decode(String nm) throws NumberFormatException

Parameters

nm − This is the String to decode.

Return Value

This method returns an Integer object holding the int value represented by nm .

Exception

NumberFormatException − if the String does not contain a parsable integer.

Example

The following example shows the usage of java.lang.Integer.decode() method.

package com.tutorialspoint;

import java.lang.*;

public class IntegerDemo {

   public static void main(String[] args) {

      Integer i = new Integer(10);
    
      String str = "50";
      /* returns an Integer object holding the int value represented
         by string str */
      System.out.println("Number = " + i.decode(str)); 
   }
}

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

Number = 50