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Optional Class | isPresent() function

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  • Difficulty Level : Easy
  • Last Updated : 22 Feb, 2018
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The isPresent() function in Optional Class is used to evaluate whether the value if assigned to variable is present or not.


It returns true if value is assigned otherwise false 


Input : Optional value1 = Optional.ofNullable(10);
Output : True

Input : Optional value2 = Optional.ofNullable(null);
Output : False

// Write Java code here
import java.util.Optional;
public class present {
public static void main(String args[]) {
    // Optional.ofNullable - allows passed
    // parameter to be not null.
    Optional<Integer> value1 = Optional.ofNullable(10);
    // Optional.ofNullable - allows passed
    // parameter to be null.
    Optional<Integer> value2 = Optional.ofNullable(null);
    System.out.println("First parameter is present:" +
    System.out.println("Second parameter is present:" +

Output : true
Output : false
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