Java Integer signum() Method

Last Updated : 17 Mar 2025

The signum() method of Java Integer class returns the signum function of the specified int value in the method argument. The signum function can be computed as:

1. -1, if the specified number is negative.
2. 0, if the specified number is zero.
3. 1, if the specified number is positive.

Syntax:

Following is the declaration of signum() method:

Parameter:

Returns:

The signum() method returns the signum function of the specified int value in the method argument.

Exceptions:

NA

Compatibility Version:

Java 1.5 and above

Example 1

Output:

Result: 1
Result: -1
Result: 0

Example 2

Output:

Enter Positive Value: 4565
Result: 1
Enter Negative Value: -432
Result: -1
Enter Zero Value: 000
Result: 0

Example 3

Output:

Output: NaN
Output: 0.0
Output: 0.0