package function;

import com.atguigu.cachestudy.bean.Emplyer;
import org.junit.jupiter.api.Test;

import java.util.Comparator;
import java.util.function.BiPredicate;
import java.util.function.Function;

public class Function003 {
    @Test
    public void test001(){
        Comparator<String> comparator = (s1,s2)->s1.compareTo( s2 );
        System.out.println( comparator.compare( "ab", "abd" ) );
        System.out.println("*****************");
        Comparator<String> comparator2 =String::compareTo;
        System.out.println(comparator2.compare( "ab","abc" ));
    }
    @Test
    public void test002(){
        BiPredicate<String,String> biPredicate1=(s1,s2)->s1.equals( s2 );
        System.out.println(biPredicate1.test("abc","abc"));
        System.out.println("************************");
        BiPredicate<String,String> biPredicate2=String::equals;
        System.out.println(biPredicate2.test( "abc","abd" ));
    }

    @Test
    public void test003(){
        Emplyer em= new Emplyer( 2,"zhangsan",11000.5,30 );
        Function<Emplyer,String> fuc =e->e.getName();
        System.out.println(fuc.apply( em ));
        System.out.println("***********************************");
        Function<Emplyer,String> fuc2 =Emplyer::getName;
        System.out.println(fuc2.apply( em ));
    }


}