23种设计模式之模板方法模式

package designMode.templateMethod;

abstract class AbstractClass {
    
    public abstract void primitiveOperation1();
    
    public abstract void primitiveOperation2();
    
    public void templateMethod(){
        primitiveOperation1();
        primitiveOperation2();
    }
}

package designMode.templateMethod;

class ConcreteClassA extends AbstractClass{

    @Override
    public void primitiveOperation1() {
        System.out.println("具体类A方法1实现");
    }

    @Override
    public void primitiveOperation2() {
        System.out.println("具体类A方法2实现");
    }

}
class ConcreteClassB extends AbstractClass{
    
    @Override
    public void primitiveOperation1() {
        System.out.println("具体类B方法1实现");
    }
    
    @Override
    public void primitiveOperation2() {
        System.out.println("具体类B方法2实现");
    }
    
}

package designMode.templateMethod;

class Test {
    public static void main(String[] args) {
        AbstractClass ac;
        ac = new ConcreteClassA();
        ac.templateMethod();
        ac = new ConcreteClassB();
        ac.templateMethod();
    }
}