OptionalInt getAsInt() method in Java with examples
OptionalInt help us to create an object which may or may not contain a int value. The getAsInt() method returns value If a value is present in OptionalInt object, otherwise throws NoSuchElementException.
Syntax:
public int getAsInt()
Parameters: This method accepts nothing.
Return value: This method returns the value described by this OptionalInt.
Exception: This method throws NoSuchElementException if no value is present
Below programs illustrate getAsInt() method:
Program 1:
import java.util.OptionalInt;
public class GFG {
public static void main(String[] args)
{
OptionalInt opInt = OptionalInt.of( 45 );
System.out.println( "OptionalInt: "
+ opInt.toString());
System.out.println( "Value in OptionalInt = "
+ opInt.getAsInt());
}
}
|
Output:
OptionalInt: OptionalInt[45]
Value in OptionalInt = 45
Program 2:
import java.util.OptionalInt;
public class GFG {
public static void main(String[] args)
{
try {
OptionalInt opInt = OptionalInt.empty();
System.out.println( "OptionalInt: "
+ opInt.toString());
System.out.println( "Value in OptionalInt = "
+ opInt.getAsInt());
}
catch (Exception e) {
System.out.println( "Exception: " + e);
}
}
}
|
Output:
OptionalInt: OptionalInt.empty
Exception: java.util.NoSuchElementException: No value present
References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalInt.html#getAsInt()
Last Updated :
30 Jul, 2019
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