How to use function interface in your application | simple example for lamba expression | Interview questions

Created a simple functional Interface

/**

 * @author Stock market swing trad

 *

 */

@functionInterface

public interface InitialStatus {

public String set();

}

Implementing the function Interface

    InitialValue soldCountInitialValue = () -> Long.valueOf(0);

    InitialValue quantityInitialValue = () -> Long.valueOf(0);

    InitialValue taxInitialValue = () -> Long.valueOf(5);

    InitialValue ratingInitialValue = () -> Long.valueOf(1);

    InitialValue ratingInitialCount = () -> Long.valueOf(1);

Using the variables

itemObj.setSoldCount(soldCountInitialValue.set());