Java - Integer Class signum() Method

Integer class signum() method: Here, we are going to learn about the signum() method of Integer class with its syntax and example. By Preeti Jain Last updated : March 18, 2024

Integer class signum() method

signum() method is available in java.lang package.
signum() method is used to returns the signum(sign number) function of the given argument (value).
signum() 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.
signum() method does not throw an exception at the time of returning signum function.

Syntax

public static int signum(int value);

Parameters

int value – represents the integer value to be parsed.

Return Value

The return type of this method is int, it returns three integer values depend on the following conditions,

If we pass "Negative Values", it returns -1.
If we pass "Positive Values", it returns 1.
If we pass "Zero Values", it returns 0.

Example

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

public class SignumOfIntegerClass {
    public static void main(String[] args) {
        int value1 = 100;
        int value2 = 0;
        int value3 = -100;

        // By using signum(value1) , it returns 1 because the passing
        // parameter holds the value is greater than 0
        int result = Integer.signum(value1);

        // Display result
        System.out.println("Integer.signum(value1): " + Integer.signum(value1));

        // By using signum(value2) , it returns 0 because the passing
        // parameter holds the value is equals to 0
        result = Integer.signum(value2);

        // Display result
        System.out.println("Integer.signum(value2): " + Integer.signum(value2));

        // By using signum(value3) , it returns -1 because the passing
        // parameter holds the value is less than 0
        result = Integer.signum(value3);

        // Display result
        System.out.println("Integer.signum(value3): " + Integer.signum(value3));
    }
}

Output

Integer.signum(value1): 1
Integer.signum(value2): 0
Integer.signum(value3): -1

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