package?com.An;public?class?MAin?
{ float?n,k;
????static?float?l,m;
????public?MAin()
????{
????????System.out.println("無參構造");}
????????{//初始塊
????????k=5;
????????System.out.println("初始塊"+k);}
????????static
????????{
????????????m=4;
????????????System.out.println("靜態(tài)初始塊"+m);}
????????????public?MAin(float?newN)
????????????{
????????????n=newN;
????????????System.out.println("有參構造"+n);}
????????????public?static?void?JIN(){
????????????ystem.out.println("靜?態(tài)"+l);}}
????????????
????????????
????????????
????????????public?class?MAin1?{
????????????/** *?@param?args */
????????????public?static?void?main(String[]?args)?{
???????????? //?TODO?Auto-generated?method?stub
???????????? //類名??對象名
???????????? MAin?pun=new?MAin();
???????????? MAin?n=new?MAin(5.0f);
???????????? n.l=10;
???????????? MAin.JIN();
???????????? MAin2?M=new?MAin2();
???????????? M.setM(5.0f);
???????????? System.out.println("分裝調用"+M.getM());
???????????? }}
2018-07-03
在用類來聲明對象的時候,我們使用了該類,就會對該類進行一次初始化,所以普通初始化塊就會被反復調用。
2018-06-08
甲魚的臀部? 規(guī)定
2018-05-24
每次將一個類進行實例化時,就會執(zhí)行普通的初始化塊,而靜態(tài)初始化塊只執(zhí)行一次,即創(chuàng)建類的時候。
2018-05-13
sun公司規(guī)定如此