1.定义一个汽车类(Car),属性有颜色,品牌,车牌号,价格,并实例化两个对象,给属性赋值,并输入属性值
//1.定义一个汽车类(Car),属性有颜色,品牌,车牌号,价格,并实例化两个对象,给属性赋值,并输入属性值
package cu.edu.nefu1;
public class Car {
String color;
String brand;
String ID;
double price;
public static void main(String[] args) {
Car car1 = new Car();
car1.brand = "奥迪";
car1.color = "白色";
car1.ID = "黑A888888";
car1.price = 2341.12;
System.out.println(car1.brand+" "+car1.color+" "+car1.ID+" "+car1.price);
}
}
2.定义一个球员类(Player),属性有身高,体重,姓名,实例化两个球员,分别是姚明和科比;
//2.定义一个球员类(Player),属性有身高,体重,姓名,实例化两个球员,分别是姚明和科比;
package cu.edu.nefu1;
public class Player {
String name;
double height;
double weight;
public static void main(String[] args) {
Player player1 = new Player();
player1.name = "姚明";
player1.height = 2.3;
player1.weight = 75;
Player player2 = new Player();
player2.name = "科比";
player2.height = 2.1;
player2.weight = 80;
System.out.println(player1.name+"身高"+player1.height+"米,体重"+player1.weight+"公斤");
System.out.println(player2.name+"身高"+player2.height+"米,体重"+player2.weight+"公斤");
}
}
3.定义一个僵尸类(Zombie),属性有名子,体力值,攻击力,实例化三个僵尸类,并给属性赋值;
//3.定义一个僵尸类(Zombie),属性有名子,体力值,攻击力,实例化三个僵尸类,并给属性赋值;
package cu.edu.nefu1;
public class Zombie {
String name;
int power;
int attack;
public static void main(String[] args) {
Zombie zombie1 = new Zombie();
zombie1.name = "普通僵尸";
zombie1.power = 2000;
zombie1.attack = 2000;
Zombie zombie2 = new Zombie();
zombie2.name = "铁桶僵尸";
zombie2.power = 3000;
zombie2.attack = 3000;
Zombie zombie3 = new Zombie();
zombie3.name = "盗贼僵尸";
zombie3.power = 4000;
zombie3.attack = 4000;
System.out.println("名字\t"+"体力值\t"+"攻击力\t");
System.out.println(zombie1.name+"\t"+zombie1.power+"\t"+zombie1.attack+"\t");
System.out.println(zombie2.name+"\t"+zombie2.power+"\t"+zombie2.attack+"\t");
System.out.println(zombie3.name+"\t"+zombie3.power+"\t"+zombie3.attack+"\t");
}
}
4.打印int,char, float,double,String ,boolean这些数据类型作为类属性时的默认值
//4.打印int,char, float,double,String ,boolean这些数据类型作为类属性时的默认值
package cu.edu.nefu1;
public class Default {
int i;
char ch;
float f;
double d;
String st;
boolean b;
public static void main(String[] args) {
Default exam = new Default();
System.out.println("int类型的默认值为:"+exam.i);
System.out.println("char类型的默认值为:"+exam.ch);
System.out.println("float类型的默认值为:"+exam.f);
System.out.println("double类型的默认值为:"+exam.d);
System.out.println("String类型的默认值为:"+exam.st);
System.out.println("boolean类型的默认值为:"+exam.b);
}
}