類型:行爲模式
模板方法模式定義一個操作中算法的骨架,而將一些步驟延遲到子類中,使得子類可以不改變一個算法的結構即可重定義該算法的某些
特定步驟。
UML圖
新建賽車的父類:
package car_package;
public class car_parent {
private int speed;
public int getSpeed() {
return speed;
}
public void setSpeed(int speed) {
this.speed = speed;
}
public void print_speed() {
System.out.println("將速度" + this.getSpeed() + "取出來!");
}
}
新建紅色儀表盤的賽車實現類:
package car_imple;
import car_package.car_parent;
public class car_imple_red extends car_parent {
@Override
public void print_speed() {
super.print_speed();
System.out.println("將速度" + this.getSpeed() + "用紅色的儀表盤顯示車的速度");
}
}
新建藍色儀表盤的賽車實現類:
package car_imple;
import car_package.car_parent;
public class car_imple_blue extends car_parent {
@Override
public void print_speed() {
super.print_speed();
System.out.println("將速度" + this.getSpeed() + "用藍色的儀表盤顯示車的速度");
}
}
新建客戶端運行類:
package run_main;
import car_imple.car_imple_blue;
import car_imple.car_imple_red;
import car_package.car_parent;
public class run_main {
public static void main(String[] args) {
car_parent car_ref_red = new car_imple_red();
car_ref_red.setSpeed(300);
car_ref_red.print_speed();
car_parent car_ref_blue = new car_imple_blue();
car_ref_blue.setSpeed(400);
car_ref_blue.print_speed();
}
}