OptionalInt ifPresent(IntConsumer) method in Java with examples

The ifPresent(java.util.function.IntConsumer) method helps us to perform the specified IntConsumer action the value of this OptionalInt object. If a value is not present in this OptionalInt, then this method does nothing. 

Syntax:

public void ifPresent(IntConsumer action)

Parameters: This method accepts a parameter action which is the action to be performed on this Optional, if a value is present. 

Return value: This method returns nothing. 

Exception: This method throw NullPointerException if a value is present and the given action is null. 

Below programs illustrate ifPresent(IntConsumer) method: 

Program 1: 

Output: 👁 Image
Program 2: 

Output: 👁 Image
References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalInt.html#ifPresent(java.util.function.IntConsumer)