java开发实战经典（第二版）P157 5-4

5.4   设计一个Dog类，有名字、颜色、年龄等属性，定义构造方法来初始化类的这些属性，定义方法输出Dog信息，编写应用程序使用Dog类。

package book;

public class JiOu {
	private String name;
	private String color;
	private int age;

	public String getName() {
		return name;
	}

	public String getColor() {
		return color;
	}

	public int getAge() {
		return age;
	}

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

	public void setColor(String color) {
		this.color = color;
	}

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

	public JiOu() {

	}

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

	public String toString() {
		return "名字:" + this.name + "\n" + "颜色:" + this.color + "\n" + "年龄:" + this.age;
	}

	public static void main(String[] args) {
		JiOu dog = new JiOu("哈士奇", "黑白相间", 2);
		System.out.println(dog);
	}
}

运行结果为:

名字:哈士奇
颜色:黑白相间
年龄:2