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Lambda expressions

Theory

Next even number

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Write a lambda expression that accepts a long value and returns the next even number.

It is guaranteed that the input number is non-negative.

Solution format. Submit your lambda expression in any valid format with ; at the end.

Examples: x -> x; (x) -> x; (x) -> { return x; };

Sample Input 1: 

2

Sample Output 1: 

4

Sample Input 2: 

317

Sample Output 2: 

318
Write a program in Java 17
import java.util.function.LongUnaryOperator;

class Operator {

public static LongUnaryOperator unaryOperator = // Write your code here
}
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