JDK lambda表达式之方法引用

import org.junit.Test;

import java.io.PrintStream;
import java.util.function.Consumer;
import java.util.function.Supplier;

public class TestMethodRef {
    

    //对象 ：：非静态方法
    //Consumer 中的void accept(T t)
    //PrintStream 中的void println(T t)
    @Test
    public void test01(){
        Consumer con1 = s -> System.out.println(s);
        con1.accept("hello");
        System.out.println("***************");
        PrintStream ps = System.out;
        Consumer con2 = ps::println;
        con2.accept("ii");
    }

    //对象 ：：非静态方法
    //Supplier 中的T get()
    //Employee 中的T getName(T t)
    @Test
    public void test02(){
        Employee e = new Employee(2,"we");
        Supplier su = () -> e.getName();
        System.out.println(su.get());
        System.out.println("************");
        Supplier su1 = e::getName;
        System.out.println(su1.get());
    }

    class Employee{
        private int age;
        private String name;

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        @Override
        public String toString() {
            return "Employy{" +
                    "age=" + age +
                    ", name='" + name + ''' +
                    '}';
        }

        public Employee(int age, String name) {
            this.age = age;
            this.name = name;
        }
    }


}