Lambda Expression in java
Lambda Expression used to loop Iteration , method declaration and etc. If you want to define the abstract method without creating the any other class , you can use Lambda Expression. Thats a main reason for using Lambda Expression in method.
Example-1
import java.util.ArrayList;
public class Main
{
public static void main(String[] args)
{
ArrayList<Integer> num = new ArrayList<Integer>();
num.add(10);
num.add(20);
num.add(30);
num.forEach(i -> System.out.println(i));
}
}
Output
10 20 30
Example-2
interface A
{
void show();
}
public class Main
{
public static void main(String[] args)
{
A obj;
obj = () ->
{
System.out.print("show");
};
obj.show();
}
}
Output
show