第八周上机作业

/*3、定义一个笔记本类，该类有颜色（char）和cpu
型号（int）两个属性。 [必做题]
• 3.1 无参和有参的两个构造方法；有参构造方法可
以在创建对象的同时为每个属性赋值；
• 3.2 输出笔记本信息的方法
• 3.3 然后编写一个测试类，测试笔记本类的各个
方法。*/

package com.a03;

public class book {
    char color;
    int number;

    public void a() {
        System.out.println("该笔记本的型号是:" + color);
    }

    public void b() {
        System.out.println("颜色为:" + number);
    }
}

package com.a03;

public class test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        book n=new book();
        n.color='黑';
        n.number=45;
        n.a();
        n.b();
    }

}

/*5、定义两个类，描述如下： [必做题]
• 5.1定义一个人类Person：
• 5.1.1定义一个方法sayHello()，可以向对方发出问
候语“hello,my name is XXX”
• 5.1.2有三个属性：名字、身高、体重

*/

package com.a03;

public class Person {
    String name;
    int gao;
    int zong;

    public void sayHello() {
        System.out.println("hello,my name is" + name);
        System.out.println("身高" + gao+"cm");
        System.out.println("体重" + zong+"kg");
    }
}

package com.a03;

public class test2 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Person a1 = new Person();
        a1.name = "王麻子";
        a1.gao = 180;
        a1.zong = 65;
        a1.sayHello();
    }

}

 

/*• 5.2定义一个PersonCreate类：
• 5.2.1创建两个对象，分别是zhangsan，33岁，1.73
；lishi，44，1.74
• 5.2.2分别调用对象的sayHello()方法。

*/

 

package com.a03;

public class PersonCrate {
    String name;
    int age;
    double shenggao;
    int tizhong;

    public void sayHello() {
        System.out.println("他的名字叫" + name);
        System.out.println("今年" + age + "岁");
        System.out.println("身高" + shenggao + "米,体重" + tizhong + "kg");
    }
}

package com.a03;

public class test3 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        PersonCrate m1 = new PersonCrate();
        m1.name = "zhangsan";
        m1.age = 33;
        m1.shenggao = 1.73;
        m1.tizhong = 45;
        m1.sayHello();
        
        System.out.println("========================");
        
        PersonCrate m2 = new PersonCrate();
        m2.name = "lishi";
        m2.age = 44;
        m2.shenggao = 1.74;
        m2.tizhong = 44;
        m2.sayHello();
    }

}