欧美性猛交XXXX免费看蜜桃,成人网18免费韩国,亚洲国产成人精品区综合,欧美日韩一区二区三区高清不卡,亚洲综合一区二区精品久久

        這里我主要和大家一起討論靜態(tài)變量與set/get方法。這些都是我們經(jīng)常接觸到的，特別是使用多個(gè)類(lèi)的時(shí)候，靜態(tài)變量與set/get方法就會(huì )頻繁被調用到，到底是哪個(gè)好點(diǎn)呢？

 

package Optimize;

 

import javax.microedition.midlet.MIDlet;

import javax.microedition.midlet.MIDletStateChangeException;

 

public class staticTest extends MIDlet {

 

       public staticTest() {

              super();

              // TODO Auto-generated constructor stub

       }

 

       protected void startApp() throws MIDletStateChangeException {

              // TODO Auto-generated method stub

              long timer = 0L;

              data d = new data();

 

              timer = System.currentTimeMillis();

              for (int k = 100000; k > 0; k--) {

                     d.setj(k);

              }

              System.out.println(System.currentTimeMillis() - timer);

             

              timer = System.currentTimeMillis();

              for (int k = 100000; k > 0; k--) {

                     data.i = k;

              }

              System.out.println(System.currentTimeMillis() - timer);

       }

 

       protected void pauseApp() {

              // TODO Auto-generated method stub

 

       }

 

       protected void destroyApp(boolean arg0) throws MIDletStateChangeException {

              // TODO Auto-generated method stub

 

       }

 

}

 

class data {

       protected static int i = 0;

       protected int j = 0;

      

       public data() {

       }

      

       public void setj(int j) {

              this.j = j;

       }

      

       public int getj() {

              return j;

       }

}

        測試出來(lái)的結果是讓人興奮的，因為使用靜態(tài)變量比get/set方法的速度快十倍以上，這么大的差距是我沒(méi)有想到的，另外用靜態(tài)變量所使用的內存值還要少點(diǎn)，這更讓我們感覺(jué)到靜態(tài)變量的好