通用构造器。静态构造器。构造方法。
package OopF.Static;
public class Test {
{
System.out.println("这里是通用构造器");
}
static {
System.out.println("这里是静态构造器");
}
public Test(){
System.out.println("这里是构造方法");
}
public static void pen(){
System.out.println("静态方法");
}
public static void main(String[] args) {
pen();//在静态方法里可以直接调用静态的东西
Test.pen();//一般使用类名去访问静态方法
Test test = new Test();
}
}
执行结果
static理解
package OopF.Static;
public class Person {
String name;
static String contry;
String adress;
public Person(String name,String contry,String adress){
this.name=name;
this.contry=contry;
this.adress=adress;
}
public static void main(String[] args) {
Person p1 = new Person("李大注","大清","八大胡同");
Person p2 = new Person("李大注","大清","八大胡同");
Person.contry="民国";
System.out.println(p1.contry);
System.out.println(p2.contry);//为什么不提示
}
}
执行结果
植物类（引用类型理解）
package Test.TestFight;
public class ZhiWu {
String name;
int hp;
int attack;
public ZhiWu(String name, int hp, int attack) {
this.name = name;
this.hp = hp;
this.attack = attack;
}
public void fight(JangShi js) {
System.out.println(this.name + "正在打" + js.name);
js.hp = js.hp - this.attack;
System.out.println(js.name + "血量还剩" + js.hp);
}
}
僵尸类
package Test.TestFight;
public class JangShi {
String name;
int hp;
int attack;
public JangShi(String name, int hp, int attack) {
this.name = name;
this.hp = hp;
this.attack = attack;
}
public void eat(ZhiWu zw){
System.out.println(this.name+"正在吃"+zw.name);
zw.hp= zw.hp-this.attack;
System.out.println(zw.name+"还剩"+zw.hp);
}
}
环境类
package Test.TestFight;
public class Cilent {
public static void main(String[] args) {
ZhiWu zhiWu = new ZhiWu("豌豆",1000,5);
JangShi js = new JangShi("铁通僵尸",800,20);
zhiWu.fight(js);
js.eat(zhiWu);
}
}
执行结果
