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Java Integer class reverse() method with example

Integer class reverse() method: Here, we are going to learn about the reverse() method of Integer class with its syntax and example.
Submitted by Preeti Jain, on September 28, 2019

Integer class reverse() method

  • reverse() method is available in java.lang package.
  • reverse() method is used to returns the value generated by reversing the order of bits in binary 2's complement denotation of the given argument.
  • reverse() 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.
  • reverse() method does not throw an exception at the time of reversing the order of bits.

Syntax:

    public static int reverse(int value);

Parameter(s):

  • int value – represents the integer value to be parsed.

Return value:

The return type of this method is int, it returns an integer value generated by reversing the bits order in 2's complement of the given integer value.

Example:

// Java program to demonstrate the example 
// of reverse(int value) method of Integer class

public class ReverseOfIntegerClass {
    public static void main(String[] args) {
        int value = 1296;

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

        // It returns the string representation of the given unsigned 
        // integer value denoted by the argument in binary by calling
        // Integer.toBinaryString(value)
        System.out.println("Integer.toBinaryString(value): " + Integer.toBinaryString(value));

        // It returns the value generated by reversing the 
        // order of the bits in the given argument value 
        // by calling Integer.reverse(value)
        System.out.println("Integer.reverse(value): " + Integer.reverse(value));
    }
}

Output

value:1296
Integer.toBinaryString(value): 10100010000
Integer.reverse(value): 144703488






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