javaµÄ»Øµ÷¼¼Êõdz̸
ÎÒÃǾ³£»áÓÃSystem.currentTimeMillis()ÔÚʼþ¿ªÊ¼Ç°ºÍ½áÊøºóÉèÖÃÒ»¸ö¿ªÊ¼Ê±¼äºÍ½áÊøÊ±¼ä£¬ÓÃËûÃǵIJî×÷Ϊ³ÌÐòÖ´ÐеÄʱ¼ä¡£
ÎÒÃDz»·Á¶¨ÒåÒ»¸ö½Ó¿ÚÓÃjava»Øµ÷À´ÊµÏÖ¶¯Ì¬¼ÆËã¡£
½Ó¿Ú¶¨Ò壺
package com.hd123.h5.ejb.verctrl;
public interface CallBack {
public void callBack();
}
È»ºóÊÇʵÏÖÕâ¸ö½Ó¿Ú
package com.hd123.h5.ejb.verctrl;
public class Run {
//ÓÉÓÚ½Ó¿ÚÖÐµÄ callBack·½·¨ÊÇûÓж¨ÒåµÄ£¬ËùÒÔÓÃÒ»¸ö½Ó¿Ú¶ÔÏóÖ´ÐÐcallBack()·½·¨£¬ÆäʵÊÇδ֪µÄ£¬ÎÒÃǾßÌåÐèҪʵÏֵķ½·¨
//¿ÉÒÔͨ¹ýcallBack()£¬Õâ¸ö·½·¨µÄ²»Í¬ÊµÏÖÀ´ÊµÏÖ¶¯Ì¬¼ÆÊ±¡£
private void run(CallBack callBack, String event) {
long startTime = System.currentTimeMillis();
callBack.callBack();
long endTime = System.currentTimeMillis();
System.out.print("Ö´ÐÐ" + event + "¹²ÏûºÄ" + (endTime - startTime) + "ms");
}
public static void main(String[] args) {
Run r=new Run();
//ÕâÀﶯ̬µÄʵÏÖcallBack·½·¨¡£
r.run(new CallBack(){
public void callBack() {
for(int i=0;i<999;i++){
for(int j=i+1;j<99999;j++){
}
}
}
}, "Ñ»·");
}
}
Ïà¹ØÎĵµ£º
1. Java±£´æµÄÎļþÃû±ØÐëÓëÀàÃûÒ»Ö£»
2. Èç¹ûÎļþÖÐÖ»ÓÐÒ»¸öÀ࣬ÎļþÃû±ØÐëÓëÀàÃûÒ»Ö£»
3. Ò»¸öJavaÎļþÖÐÖ»ÄÜÓÐÒ»¸öpublicÀࣻ
4. Èç¹ûÎļþÖв»Ö¹Ò»¸öÀ࣬Îļþ ......
1£® ¹ØÓÚ¶¯Ì¬¼ÓÔØ»úÖÆ??
ѧϰJava±ÈC++¸üÈÝÒ×Àí½âOOPµÄ˼Ï룬±Ï¾¹C++»¹»ìºÏÁ˲»ÉÙÃæÏò¹ý³ÌµÄ³É·Ö¡£ºÜ¶àÈ˶¼Äܱ³³öÀ´JavaÓïÑÔµÄÌØµã£¬ËùνµÄ¶¯Ì¬¼ÓÔØ»úÖÆµÈµÈ¡£µ±È»¸ÅÄîÍùÍùÊÇÏȼÇס¶øºóÏû»¯µÄ£¬¿ÉÓжàÉÙÈËÕæÕýÈ¥Ìå»á¹ý¶¯Ì¬¼ÓÔØµÄ»úÖÆ£¬ÊÔͼȥѰÕÒ¹ýÆäÖеÄϸ½ÚÄØ? Ìṩ´ó¼ÒÒ»¸ö·½·¨£º
ÔÚÃüÁîÐд°¿ÚÔËÐÐJava³ÌÐòµÄÊ ......
1.JavaÔÚÐéÄâ»úÉÏÔËÐÐ
JavaÔ´´úÂë²¢²»ÊDZ»±àÒë³ÉΪÆÕͨµÄ»úÆ÷´úÂë¡£¶øÊDZ»·Òë³ÉΪÐéÄâ»ú¿ÉÒÔÖ´ÐеĴúÂë¡£Ò»¸öJava½âÊÍÆ÷×îÖÕÖ´ÐÐÕâЩ´úÂë¡£ÕâÆäÖÐûÓÐÁ¬½ÓµÄ¹ý³Ì£»½âÊÍÔÚÐèÒªµÄʱºò¶¯Ì¬µÄ¼ÓÔØÒ»Ð©Àࣻ
2.JavaÊÇÍêÈ«ÃæÏò¶ÔÏóµÄ
JavaÊÇÒ»ÖÖÍêÈ«ÃæÏò¶ÔÏóµÄÓïÑÔ¡£ÕâÒâζ×ÅÄã¶ÔÈκÎÒ»¸öJava¶ÔÏóËù×öµÄ¶ ......