OptionalInt isPresent() method in Java with examples
OptionalInt help us to create an object which may or may not contain a Int value. The isPresent() method help us to get the answer that Int value is present in OptionalInt object or not. If an int value is present in this object, this method returns true, otherwise false.
Syntax:
public boolean isPresent()
Parameters: This method accepts nothing.
Return value: This method returns true if an int value is present, otherwise false
Below programs illustrate isPresent() method:
Program 1:
import java.util.OptionalInt;
public class GFG {
public static void main(String[] args)
{
OptionalInt opInt = OptionalInt.of( 12345 );
System.out.println( "OptionalInt has a value= "
+ opInt.isPresent());
}
}
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Output:
OptionalInt has a value= true
Program 2:
import java.util.OptionalInt;
public class GFG {
public static void main(String[] args)
{
OptionalInt opInt = OptionalInt.empty();
boolean response = opInt.isPresent();
if (response)
System.out.println( "Value present" );
else
System.out.println( "Value absent" );
}
}
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References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalInt.html#isPresent()
Last Updated :
01 May, 2019
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