JAVA EE: Java Tutorial: Lambda expression in java[Lambda expression example with return keyword]

Wednesday, 17 May 2017

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LambdaDemo.java

@FunctionalInterface
interface Add
{
    int addition(int a, int b);
}

/**
 * 
 * You must use return keyword when lambda expression contains
 * multiple statements.
 * 
 * Java Lambda Expression Example: With return keyword
 *
 */
public class LambdaDemo
{

    public static void main(String[] args)
    {
        // Lambda expression with return keyword.
        Add add = (int a, int b) ->
        {
            int sum = a + b;
            return sum;
        };

        int sum = add.addition(13, 53);
        System.out.println("sum = " + sum);
    }

}