/*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 practice6.computer; public class Computer { String color; int cpu; public void getColor(){ System.out.println("color:"+color); } public void getCpu(){ System.out.println("cup:"+cpu); } }
package practice6.computer; public class test1 { public static void main(String[] args) { // TODO Auto-generated method stub Computer C=new Computer(); C.color = "pink"; C.cpu = 250; C.getColor(); C.getCpu(); } }
/*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 • 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 practice6.person; public class Person { String name; double height; int age; public void sayHello() { System.out.println("hello,my name is " + name); System.out.println("my height is " + height); System.out.println("my age is " + age); } }
package practice6.person; public class PersonCreate { public static void main(String[] args) { // TODO Auto-generated method stub Person p1 = new Person(); p1.name = "zhangsan"; p1.age = 33; p1.height = 1.73; p1.sayHello(); Person p2 = new Person(); p2.name = "lisi"; p2.age = 44; p2.height = 1.74; p2.sayHello(); } }