Comprobar si dos enteros son iguales o no en Java

La verificación de dos enteros iguales o no en Java se realiza mediante varios enfoques.

Input:    FirstNumber = 15
          SecondNumber= 15
Output: Numbers are same

Input:    FirstNumber = 15
          SecondNumber= 25
Output: Numbers are not same

Si dos números son iguales entonces su resta es igual a 0.

// Check Two Integers are Equal or Not in Java
// using arithmetic operator
import java.io.*;
class GFG {
    public static void main(String[] args)
    {
        int firstNumber = 15;
        int secondNumber = 15;
        if ((firstNumber - secondNumber) == 0)
            System.out.println("Numbers are equal");
        else
            System.out.println("Numbers are not equal");
    }
}

Numbers are equal

Si dos números son iguales, entonces el operador igual en si la condición devuelve verdadero, de lo contrario devuelve falso.

// Check Two Integers are Equal or Not in Java
// using Comparison Operators
import java.io.*;
class GFG {
    public static void main(String[] args)
    {
        int firstNumber = 15;
        int secondNumber = 15;
        if (firstNumber == secondNumber)
            System.out.println("Numbers are equal");
        else
            System.out.println("Numbers are not equal");
    }
}

Numbers are equal

Convierta Números a string y use el método compareTo() en la clase de string. El método compareTo() devuelve 0 si ambas strings son iguales; de lo contrario, devuelve 1 o -1.

// Check Two Integers are Equal or Not in Java
// using String functions
import java.io.*;
class GFG {
    public static void main(String[] args)
    {
        String firstNumber = 15 + "";
        String secondNumber = 15 + "";
        if (firstNumber.compareTo(secondNumber) == 0)
            System.out.println("Numbers are equal");
        else
            System.out.println("Numbers are not equal");
    }
}

Numbers are equal

La propiedad XOR establece que XOR de dos números iguales es cero.

// Check Two Integers are Equal or Not in Java
// using XOR Operation
import java.io.*;
class GFG {
    public static void main(String[] args)
    {
        int firstNumber = 15;
        int secondNumber = 15;
        if ((firstNumber^secondNumber)==0)
            System.out.println("Numbers are equal");
        else
            System.out.println("Numbers are not equal");
    }
}

Numbers are equal

Enfoque #5:

// Check Two Integers are Equal or Not in Java
import java.io.*;
 
class GFG {
    public static void main(String[] args)
    {
        int firstNumber = 15;
        int secondNumber = 15;
        if ((firstNumber & ~secondNumber) == 0
            && (~firstNumber & secondNumber) == 0)
            System.out.print("Numbers are equal");
        else
            System.out.print("Numbers are not equal");
    }
}

Numbers are equal