匿名对象作为方法的参数及返回值

快速生成局部变量的快捷键:

想快速生成一个 Dog dog = new Dog();的局部变量只需要输入new Dog(); 并按下ALT + Entter

import java.util.Scanner;

public class Main08{
    public static void main(String[] args) {

        scanInt(new Scanner(System.in));
        Dog dog = reDog("小黑", 1, "黑色");
        System.out.println("=====================================");
        dog.printAll();
    }
    //使用匿名对象作为参数
    public static void scanInt(Scanner sc){
        System.out.println("请输入一个数: ");
        int num = sc.nextInt();
        System.out.println("你输入的数是: " + num);

    }
   //使用匿名对象作为返回值
    public static Dog reDog(String name,int age,String color){
        return new Dog(name,age,color);
    }
}

public class Dog{
    private String name;//姓名
    private int age;//年龄
    private String color;//毛色

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

    public Dog() {
    }

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

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

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }
    public void printAll() {
        System.out.println("名字: " + name);
        System.out.println("年龄 " + age);
        System.out.println("毛色: " + color);
    } //打印所有成员变量



}