Java Tutorial

Java Control Statements

Object Oriented Programming

Java Built-in Classes

Java File Handling

Java Error & Exceptions

Java Multithreading

Java Synchronization

Java Networking

Java Collections

Java List Interface

Java Queue Interface

Java Map Interface

Java Set Interface

Java Data Structures

Java Collections Algorithms

Java Miscellaneous

Advanced Java

Java APIs & Frameworks

Java Useful Resources

Java - valueOf() Method



Description

The valueOf method returns the relevant Number Object holding the value of the argument passed. The argument can be a primitive data type, String, etc.

This method is a static method. The method can take two arguments, where one is a String and the other is a radix.

Syntax

Following are all the variants of this method −

static Integer valueOf(int i)
static Integer valueOf(String s)
static Integer valueOf(String s, int radix)

Parameters

Here is the detail of parameters −

  • i − An int for which Integer representation would be returned.

  • s − A String for which Integer representation would be returned.

  • radix − This would be used to decide the value of returned Integer based on the passed String.

Return Value

  • valueOf(int i) − This returns an Integer object holding the value of the specified primitive.

  • valueOf(String s) − This returns an Integer object holding the value of the specified string representation.

  • valueOf(String s, int radix) − This returns an Integer object holding the integer value of the specified string representation, parsed with the value of radix.

Example

public class Test { 

   public static void main(String args[]) {
      Integer x =Integer.valueOf(9);
      Double c = Double.valueOf(5);
      Float a = Float.valueOf("80");               
      Integer b = Integer.valueOf("444",16);

      System.out.println(x); 
      System.out.println(c);
      System.out.println(a);
      System.out.println(b);
   }
}

This will produce the following result −

Output

9
5.0
80.0
1092
java_numbers.htm
Advertisements