What is Lambda Expression in java 8 With Example | Full Stack With Java

Lambda Expression in java : Using Lambda Expression We Can Reduce Number Of Lines of Java Code. this Feature Was introduce in Version 8 of java.

Note – Lambdas Expression Used Only Functional Interface.

Lambda Expression in java

Example 1

@FunctionalInterface
public interface A {
public void test();
}
public class B {
public static void main(String[] args ) {
A a1 = ( ) -> { System.out.println(10);  } ;
a1.test();
}
}

Output : 10

• What is Interface in Java With Example
• What is Abstract Class in Java With Example

Example 2

@FunctionalInterface
public interface A {
public void test( int x );
}
public class B {
public static void main(String[] args ) {
A a1 = ( int x ) -> { System.out.println(x);  } ;
a1.test(100);
}
}

Output : 100