<span style="font-size:14px;">class GrandPa
{
	public String grandpaName="grandpaName1";	//例項變數
	public static int grandpaAge = 1;	//靜態變數
	
	//靜態程式碼塊
	static
	{	
		System.out.println("in staticBlock:grandpaName can not  be visited"+" grandpaAge="+grandpaAge);
		System.out.println("this is grandpa's staticBlock");
		grandpaAge = 2;
	}

	//構造程式碼塊
	{	
		System.out.println("in struBlock:grandpaName="+grandpaName+" grandpaAge="+grandpaAge);
		System.out.println("this is grandpa's struBlock");
		grandpaName = "grandpaName3";
		grandpaAge = 3;
	}

	//建構函式
	public GrandPa(){
		System.out.println("in struFunction:grandpaName="+grandpaName+" grandpaAge="+grandpaAge);
		grandpaName = "grandpaName4";
		grandpaAge = 4;
	}

	//例項函式
	//例項函式不影響類載入流程，寫出來是為了檢視最終一些變數的值
	public void grandpaShow(){
		System.out.println("finally:"+grandpaName+" grandpaAge="+grandpaAge);
	}
}

class Father extends GrandPa
{
	public String fatherName="fatherName1";	//例項變數
	public static int fatherAge = 1;	//靜態變數
	
	//靜態程式碼塊
	static
	{	
		System.out.println("in staticBlock:fatherName can not  be visited"+" fatherAge="+fatherAge);
		System.out.println("this is father's staticBlock");
		fatherAge = 2;
	}

	//構造程式碼塊
	{	
		System.out.println("in struBlock:fatherName="+fatherName+" fatherAge="+fatherAge);
		System.out.println("this is father's struBlock");
		fatherName = "fatherName3";
		fatherAge = 3;
	}

	//建構函式
	public Father(){
		System.out.println("in struFunction:fatherName="+fatherName+" fatherAge="+fatherAge);
		fatherName = "fatherName4";
		fatherAge = 4;
	}

	//例項函式
	//例項函式不影響類載入流程，寫出來是為了檢視最終一些變數的值
	public void fatherShow(){
		System.out.println("finally:"+fatherName+" fatherAge="+fatherAge);
	}
}


class Son extends Father
{
	public String sonName="sonName1";	//例項變數
	public static int sonAge = 1;	//靜態變數
	
	//靜態程式碼塊
	static
	{	
		System.out.println("in staticBlock:sonName can not  be visited"+" sonAge="+sonAge);
		System.out.println("this is Son's staticBlock");
		sonAge = 2;
	}

	//構造程式碼塊
	{	
		System.out.println("in struBlock:sonName="+sonName+" sonAge="+sonAge);
		System.out.println("this is Son's struBlock");
		sonName = "sonName3";
		sonAge = 3;
	}

	//建構函式
	public Son(){
		System.out.println("in struFunction:sonName="+sonName+" sonAge="+sonAge);
		sonName = "sonName4";
		sonAge = 4;
	}

	//例項函式
	//例項函式不影響類載入流程，寫出來是為了檢視最終一些變數的值
	public void sonShow(){
		grandpaShow();
		fatherShow();
		System.out.println("finally:"+sonName+" sonAge="+sonAge);
	}

	//靜態函式
	//靜態函式沒必要寫，不影響類載入流程


	//主函式
	public static void main(String[] args){
		Son son = new Son();
		son.sonShow();
	}
}</span>