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java£ºµÝ¹é£º10ԪǮ°´1£¬2£¬5ÔªÈÎÒâ×éºÏ

package game;
public class Money {
 public static void main(String[] args) {
  fun("", 10);
  System.out.println("×ܹ²Ëã·¨£º" + i);
 }
 // 10ԪǮµÄ×é³É£¬1£¬2£¬5ÈÎÒâ×éºÏ
 public static int i = 1;
 public static void fun(String log, int n) {
  // int num = n;
  if (0 == n) {
   System.out.println(log.substring(0, log.length() - 1) + "=");
   return;
  } else if (1 == n) {
   System.out.println(log + "1" + "=");
   return;
  }
  if (n >= 1)
   fun(log + "1+", n - 1);
  if (n >= 2)
   fun(log + "2+", n - 2);
  if (n >= 5)
   fun(log + "5+", n - 5);
  i++;
 }
}


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´Ë´úÂ룬¾­¹ý1000ÊýÁ¿¼¶µÄ¶àÏ̲߳¢·¢·ÃÎʲâÊÔ¡£ÔÚËĺËCPUÏÂÒ²½øÐÐ ......

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Jakarta-OROÊÇ×îÈ«ÃæÒÔ¼°ÓÅ»¯µÃ×îºÃµÄÕýÔò±í´ïʽAPIÖ®Ò»£¬Jakarta-ORO¿âÒÔǰ½Ð×öOROMatcher£¬ÊÇÓÉDaniel F. Savarese±àд£¬ºóÀ´Ëû½«ÆäÔùÓëJakarta Project£¬¶ÁÕß¿ÉÔÚApache.orgµÄÍøÕ¾ ÏÂÔØ¸ÃAPI°ü¡£
Ðí¶àÔ´´úÂ뿪·ÅµÄÕýÔò±í´ïʽ¿â¶¼ÊÇÖ§³ÖPerl5¼æÈݵÄÕýÔò±í´ïʽÓï·¨£¬Jakarta-OROÕýÔ ......

java£ºÊÖдMyArrayLisyµÄ³£Ó÷½·¨£¬Ôöɾ¸Ä²é

package arrays.myArray;
public class MyArrayList {
 private Object[] arrObj = new Object[3];
 private int size = 0;
 
 // ³¤¶È
 public int size() {
  return size;
 }
 // insert
 public void add(Object obj) {
  add(size,obj);
&nb ......

java£ºµÝ¹é£ºººÂÞËþÓÎÏ·¼ÆËã³ö×îÉٵIJ½Êý

package game;
public class HanTa {
 public static int i = 0;
 public static void main(String[] args){
  calc('A', 'B', 'C', 2);
  System.out.println("×îÉÙÐèÒª"+i+"²½¡£");
 }
 
 //ººÂÞËþÓÎÏ·¼ÆËã
 public static void calc(char src, char ilde, c ......

java£ºµÝ¹é£º10µÄ½×³Ë

package game;
public class JieCeng {
 public static void main(String[] args){
  System.out.println(fun(10));
 }
 
 public static int fun(int n){
  if(1==n)
   return 1;
  System.out.println( n * fun(n-1));
  return ......
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