package top.qaqaq.java.P275;
/*
* 体会4种不同的权限修饰
*
*
*
*/
public class Order {
private int orderPrivate;
int orderDefault;
protected int orderProtected;
public int orderPublic;
private void methodPrivate() {
orderPrivate = 1;
orderDefault = 2;
orderProtected = 3;
orderPublic = 4;
}
void methodDefault() {
orderPrivate = 1;
orderDefault = 2;
orderProtected = 3;
orderPublic = 4;
}
protected void methodProtected() {
orderPrivate = 1;
orderDefault = 2;
orderProtected = 3;
orderPublic = 4;
}
public void methodPublic() {
orderPrivate= 1;
orderDefault = 2;
orderProtected = 3;
orderPublic = 4;
}
}
package top.qaqaq.java.P275;
public class OrderTest {
public static void main(String[] args) {
Order order = new Order();
order.orderDefault = 1;
order.orderProtected = 2;
order.orderPublic = 3;
order.methodDefault();
order.methodProtected();
order.methodPublic();
//同一个包中的其他类，不可以调用Order类中私有的属性、方法
// order.orderPrivate = 4;
// order.methodPrivate();
}
}
package top.qaqaq.java.P275.P275;
import top.qaqaq.java.P275.Order;
public class SubOrder extends Order {
public void method() {
orderProtected = 1;
orderPublic = 2;
methodProtected();
methodPublic();
//在不同包的子类中，不能调用Order类中声明为private和缺省权限的属性、方法
// orderDefault = 3;
// orderPrivate = 4;
// methodDefault();
// methodPrivate();
}
}
package top.qaqaq.java.P275.P275;
import top.qaqaq.java.P275.Order;
public class OrderTest {
public static void main(String[] args) {
Order order = new Order();
order.orderPublic = 1;
order.methodPublic();
//不同包下的普通类（非子类）要使用Order类，不可以调用声明为private、缺省、protected权限的属性、方法
// order.orderPrivate = 2;
// order.orderDefault = 3;
// order.orderProtected = 4;
//
// order.methodPrivate();
// order.methodDefault();
// order.methodProtected();
}
public void show(Order order) {
order.orderPublic = 1;
order.methodPublic();
//不同包下的普通类（非子类）要使用Order类，不可以调用声明为private、缺省、protected权限的属性、方法
// order.orderPrivate = 2;
// order.orderDefault = 3;
// order.orderProtected = 4;
//
// order.methodPrivate();
// order.methodDefault();
// order.methodProtected();
}
}