Java.util.function.LongPredicate interface in Java with Examples

Java.util.function.LongBinaryOperator interface with Examples

Last Updated : 18 Jul, 2019

The LongBinaryOperator interface was introduced in Java 8. It represents an operation on two long values and returns the result as a long value. It is a functional interface and thus can be used as a lambda expression or in a method reference. It is mostly used when the operation needs to be encapsulated from the user.

Methods:

applyAsLong(): This function takes two long values, performs the required operation and returns the result as a long.
```
public long applyAsLong(long val1, long val2)
```

Example to demonstrate LongBinaryOperator interface as a lambda expression .

// Java program to demonstrate LongBinaryOperator 
  
import java.util.function.LongBinaryOperator; 
  
public class LongBinaryOperatorDemo { 
    public static void main(String[] args) 
    { 
  
        LongBinaryOperator longBinaryOperator = (x, y) -> 
        { 
            return x + y; 
        }; 
  
        System.out.print("343666 + 547477 = "); 
        System.out.println(longBinaryOperator 
                               .applyAsLong(343666, 547477)); 
  
        LongBinaryOperator longBinaryOperator1 = (x, y) -> 
        { 
            return x * y; 
        }; 
        System.out.print("343666 * 547477 = "); 
        System.out.println(longBinaryOperator1 
                               .applyAsLong(343666, 547477)); 
    } 
} 

Output:

343666 + 547477 = 891143
343666 * 547477 = 188149230682

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/function/LongBinaryOperator.html

Java.util.function.LongPredicate interface in Java with Examples

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