\u4ec0\u4e48\u662f\u63a7\u5236\u53cd\u8f6c\uff08Inversion of Control\uff09\u4e0e\u4f9d\u8d56\u6ce8\u5165\uff08Dependency Injection\uff09<\/li> \n <\/ul> \n \u5173\u952e\u5b57<\/h2> \n
finalize<\/strong><\/p> \n \n - \u4ec0\u4e48\u662ffinalize()\u65b9\u6cd5<\/li> \n <\/ul> \n
\n - finalize()\u65b9\u6cd5\u4ec0\u4e48\u65f6\u5019\u88ab\u8c03\u7528<\/li> \n
- \u6790\u6784\u51fd\u6570(finalization)\u7684\u76ee\u7684\u662f\u4ec0\u4e48<\/li> \n
- final \u548c finalize \u7684\u533a\u522b<\/li> \n
- final<\/li> \n <\/ol> \n
\n - final\u5173\u952e\u5b57\u6709\u54ea\u4e9b\u7528\u6cd5<\/li> \n <\/ul> \n
\n - final \u4e0e static \u5173\u952e\u5b57\u53ef\u4ee5\u7528\u4e8e\u54ea\u91cc\uff1f\u5b83\u4eec\u7684\u4f5c\u7528\u662f\u4ec0\u4e48<\/li> \n
- final, finally, finalize\u7684\u533a\u522b<\/li> \n
- final\u3001finalize \u548c finally \u7684\u4e0d\u540c\u4e4b\u5904\uff1f<\/li> \n <\/ol> \n
\n - \u80fd\u5426\u5728\u8fd0\u884c\u65f6\u5411 static final \u7c7b\u578b\u7684\u8d4b\u503c<\/li> \n <\/ul> \n
\n - \u4f7f\u7528final\u5173\u952e\u5b57\u4fee\u9970\u4e00\u4e2a\u53d8\u91cf\u65f6\uff0c\u662f\u5f15\u7528\u4e0d\u80fd\u53d8\uff0c\u8fd8\u662f\u5f15\u7528\u7684\u5bf9\u8c61\u4e0d\u80fd\u53d8<\/li> \n
- \u4e00\u4e2a\u7c7b\u88ab\u58f0\u660e\u4e3afinal\u7c7b\u578b\uff0c\u8868\u793a\u4e86\u4ec0\u4e48\u610f\u601d<\/li> \n
- throws, throw, try, catch, finally\u5206\u522b\u4ee3\u8868\u4ec0\u4e48\u610f\u4e49<\/li> \n <\/ol> \n
Java \u6709\u51e0\u79cd\u4fee\u9970\u7b26\uff1f\u5206\u522b\u7528\u6765\u4fee\u9970\u4ec0\u4e48<\/strong>
volatile<\/strong><\/p> \n \n - volatile \u4fee\u9970\u7b26\u7684\u6709\u8fc7\u4ec0\u4e48\u5b9e\u8df5<\/li> \n
- volatile \u53d8\u91cf\u662f\u4ec0\u4e48\uff1fvolatile \u53d8\u91cf\u548c atomic \u53d8\u91cf\u6709\u4ec0\u4e48\u4e0d\u540c<\/li> \n
- volatile \u7c7b\u578b\u53d8\u91cf\u63d0\u4f9b\u4ec0\u4e48\u4fdd\u8bc1\uff1f\u80fd\u4f7f\u5f97\u4e00\u4e2a\u975e\u539f\u5b50\u64cd\u4f5c\u53d8\u6210\u539f\u5b50\u64cd\u4f5c\u5417<\/li> \n
- \u80fd\u521b\u5efa volatile \u6570\u7ec4\u5417\uff1f<\/li> \n <\/ul> \n
transient\u53d8\u91cf\u6709\u4ec0\u4e48\u7279\u70b9<\/strong>
super\u4ec0\u4e48\u65f6\u5019\u4f7f\u7528<\/strong>
public static void \u5199\u6210 static public void\u4f1a\u600e\u6837<\/strong>
\u8bf4\u660e\u4e00\u4e0bpublic static void main(String args[])\u8fd9\u6bb5\u58f0\u660e\u91cc\u6bcf\u4e2a\u5173\u952e\u5b57\u7684\u4f5c\u7528<\/strong>
\u8bf7\u8bf4\u51fa\u4f5c\u7528\u57dfpublic, private, protected, \u4ee5\u53ca\u4e0d\u5199\u65f6\u7684\u533a\u522b<\/strong>
sizeof \u662fJava \u7684\u5173\u952e\u5b57\u5417<\/strong>
static<\/strong><\/p> \n \n - static class \u4e0e non static class\u7684\u533a\u522b<\/li> \n
- static \u5173\u952e\u5b57\u662f\u4ec0\u4e48\u610f\u601d\uff1fJava\u4e2d\u662f\u5426\u53ef\u4ee5\u8986\u76d6(override)\u4e00\u4e2aprivate\u6216\u8005\u662fstatic\u7684\u65b9\u6cd5<\/li> \n
- \u9759\u6001\u7c7b\u578b\u6709\u4ec0\u4e48\u7279\u70b9<\/li> \n
- main() \u65b9\u6cd5\u4e3a\u4ec0\u4e48\u5fc5\u987b\u662f\u9759\u6001\u7684\uff1f\u80fd\u4e0d\u80fd\u58f0\u660e main() \u65b9\u6cd5\u4e3a\u975e\u9759\u6001<\/li> \n
- \u662f\u5426\u53ef\u4ee5\u4ece\u4e00\u4e2a\u9759\u6001\uff08static\uff09\u65b9\u6cd5\u5185\u90e8\u53d1\u51fa\u5bf9\u975e\u9759\u6001\uff08non-static\uff09\u65b9\u6cd5\u7684\u8c03\u7528<\/li> \n
- \u9759\u6001\u53d8\u91cf\u5728\u4ec0\u4e48\u65f6\u5019\u52a0\u8f7d\uff1f\u7f16\u8bd1\u671f\u8fd8\u662f\u8fd0\u884c\u671f\uff1f\u9759\u6001\u4ee3\u7801\u5757\u52a0\u8f7d\u7684\u65f6\u673a\u5462<\/li> \n
- \u6210\u5458\u65b9\u6cd5\u662f\u5426\u53ef\u4ee5\u8bbf\u95ee\u9759\u6001\u53d8\u91cf\uff1f\u4e3a\u4ec0\u4e48\u9759\u6001\u65b9\u6cd5\u4e0d\u80fd\u8bbf\u95ee\u6210\u5458\u53d8\u91cf<\/li> \n <\/ul> \n
switch<\/strong><\/p> \n \n - switch \u8bed\u53e5\u4e2d\u7684\u8868\u8fbe\u5f0f\u53ef\u4ee5\u662f\u4ec0\u4e48\u7c7b\u578b\u6570\u636e<\/li> \n
- switch \u662f\u5426\u80fd\u4f5c\u7528\u5728byte \u4e0a\uff0c\u662f\u5426\u80fd\u4f5c\u7528\u5728long \u4e0a\uff0c\u662f\u5426\u80fd\u4f5c\u7528\u5728String\u4e0a<\/li> \n
- while \u5faa\u73af\u548c do \u5faa\u73af\u6709\u4ec0\u4e48\u4e0d\u540c<\/li> \n <\/ul> \n
\u64cd\u4f5c\u7b26<\/h2> \n \n - &\u64cd\u4f5c\u7b26\u548c&&\u64cd\u4f5c\u7b26\u6709\u4ec0\u4e48\u533a\u522b?<\/li> \n
- a = a + b \u4e0e a += b \u7684\u533a\u522b\uff1f<\/li> \n
- \u903b\u8f91\u64cd\u4f5c\u7b26 (&,|,^)\u4e0e\u6761\u4ef6\u64cd\u4f5c\u7b26(&&,||)\u7684\u533a\u522b<\/li> \n
- 3*0.1 == 0.3 \u5c06\u4f1a\u8fd4\u56de\u4ec0\u4e48\uff1ftrue \u8fd8\u662f false\uff1f<\/li> \n
- float f=3.4; \u662f\u5426\u6b63\u786e\uff1f<\/li> \n
- short s1 = 1; s1 = s1 + 1;\u6709\u4ec0\u4e48\u9519?<\/li> \n <\/ul> \n
\u6570\u636e\u7ed3\u6784<\/h2> \n
\u57fa\u7840\u7c7b\u578b(Primitives)<\/strong><\/p> \n \n - \u57fa\u7840\u7c7b\u578b(Primitives)\u4e0e\u5c01\u88c5\u7c7b\u578b(Wrappers)\u7684\u533a\u522b\u5728\u54ea\u91cc<\/li> \n
- \u7b80\u8ff0\u4e5d\u79cd\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u5927\u5c0f\uff0c\u4ee5\u53ca\u4ed6\u4eec\u7684\u5c01\u88c5\u7c7b<\/li> \n
- int \u548c Integer \u54ea\u4e2a\u4f1a\u5360\u7528\u66f4\u591a\u7684\u5185\u5b58\uff1f int \u548c Integer \u6709\u4ec0\u4e48\u533a\u522b\uff1fparseInt()\u51fd\u6570\u5728\u4ec0\u4e48\u65f6\u5019\u4f7f\u7528\u5230<\/li> \n
- float\u548cdouble\u7684\u9ed8\u8ba4\u503c\u662f\u591a\u5c11<\/li> \n
- \u5982\u4f55\u53bb\u5c0f\u6570\u56db\u820d\u4e94\u5165\u4fdd\u7559\u5c0f\u6570\u70b9\u540e\u4e24\u4f4d<\/li> \n
- char \u578b\u53d8\u91cf\u4e2d\u80fd\u4e0d\u80fd\u5b58\u8d2e\u4e00\u4e2a\u4e2d\u6587\u6c49\u5b57\uff0c\u4e3a\u4ec0\u4e48<\/li> \n <\/ul> \n
\u7c7b\u578b\u8f6c\u6362<\/strong><\/p> \n \n - \u600e\u6837\u5c06 bytes \u8f6c\u6362\u4e3a long \u7c7b\u578b<\/li> \n
- \u600e\u4e48\u5c06 byte \u8f6c\u6362\u4e3a String<\/li> \n
- \u5982\u4f55\u5c06\u6570\u503c\u578b\u5b57\u7b26\u8f6c\u6362\u4e3a\u6570\u5b57<\/li> \n
- \u6211\u4eec\u80fd\u5c06 int \u5f3a\u5236\u8f6c\u6362\u4e3a byte \u7c7b\u578b\u7684\u53d8\u91cf\u5417\uff1f\u5982\u679c\u8be5\u503c\u5927\u4e8e byte \u7c7b\u578b\u7684\u8303\u56f4\uff0c\u5c06\u4f1a\u51fa\u73b0\u4ec0\u4e48\u73b0\u8c61<\/li> \n
- \u80fd\u5728\u4e0d\u8fdb\u884c\u5f3a\u5236\u8f6c\u6362\u7684\u60c5\u51b5\u4e0b\u5c06\u4e00\u4e2a double \u503c\u8d4b\u503c\u7ed9 long \u7c7b\u578b\u7684\u53d8\u91cf\u5417<\/li> \n
- \u7c7b\u578b\u5411\u4e0b\u8f6c\u6362\u662f\u4ec0\u4e48<\/li> \n <\/ul> \n
\u6570\u7ec4<\/strong><\/p> \n \n - \u5982\u4f55\u6743\u8861\u662f\u4f7f\u7528\u65e0\u5e8f\u7684\u6570\u7ec4\u8fd8\u662f\u6709\u5e8f\u7684\u6570\u7ec4<\/li> \n
- \u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f null \u8fd8\u662f\u4e3a\u7a7a<\/li> \n
- \u600e\u4e48\u6253\u5370\u6570\u7ec4\uff1f \u600e\u6837\u6253\u5370\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u5143\u7d20<\/li> \n
- Array \u548c ArrayList\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u4ec0\u4e48\u65f6\u5019\u5e94\u8be5\u4f7f\u7528Array\u800c\u4e0d\u662fArrayList<\/li> \n
- \u6570\u7ec4\u548c\u94fe\u8868\u6570\u636e\u7ed3\u6784\u63cf\u8ff0\uff0c\u5404\u81ea\u7684\u65f6\u95f4\u590d\u6742\u5ea6<\/li> \n
- \u6570\u7ec4\u6709\u6ca1\u6709length()\u8fd9\u4e2a\u65b9\u6cd5? String\u6709\u6ca1\u6709length()\u8fd9\u4e2a\u65b9\u6cd5<\/li> \n <\/ul> \n
\u961f\u5217<\/strong><\/p> \n \n - \u961f\u5217\u548c\u6808\u662f\u4ec0\u4e48\uff0c\u5217\u51fa\u5b83\u4eec\u7684\u533a\u522b<\/li> \n
- BlockingQueue\u662f\u4ec0\u4e48<\/li> \n
- \u7b80\u8ff0 ConcurrentLinkedQueue LinkedBlockingQueue \u7684\u7528\u5904\u548c\u4e0d\u540c\u4e4b\u5904\u3002<\/li> \n <\/ul> \n
ArrayList\u3001Vector\u3001LinkedList\u7684\u5b58\u50a8\u6027\u80fd\u548c\u7279\u6027<\/strong>
String<\/strong>
StringBuffer<\/strong><\/p> \n \n - ByteBuffer \u4e0e StringBuffer\u6709\u4ec0\u4e48\u533a\u522b<\/li> \n <\/ul> \n
HashMap<\/strong><\/p> \n \n - HashMap\u7684\u5de5\u4f5c\u539f\u7406\u662f\u4ec0\u4e48<\/li> \n
- \u5185\u90e8\u7684\u6570\u636e\u7ed3\u6784\u662f\u4ec0\u4e48<\/li> \n
- HashMap \u7684 table\u7684\u5bb9\u91cf\u5982\u4f55\u786e\u5b9a\uff1floadFactor \u662f\u4ec0\u4e48\uff1f \u8be5\u5bb9\u91cf\u5982\u4f55\u53d8\u5316\uff1f\u8fd9\u79cd\u53d8\u5316\u4f1a\u5e26\u6765\u4ec0\u4e48\u95ee\u9898\uff1f<\/li> \n
- HashMap \u5b9e\u73b0\u7684\u6570\u636e\u7ed3\u6784\u662f\u4ec0\u4e48\uff1f\u5982\u4f55\u5b9e\u73b0<\/li> \n
- HashMap \u548c HashTable\u3001ConcurrentHashMap \u7684\u533a\u522b<\/li> \n
- HashMap\u7684\u904d\u5386\u65b9\u5f0f\u53ca\u6548\u7387<\/li> \n
- HashMap\u3001LinkedMap\u3001TreeMap\u7684\u533a\u522b<\/li> \n
- \u5982\u4f55\u51b3\u5b9a\u9009\u7528HashMap\u8fd8\u662fTreeMap<\/li> \n
- \u5982\u679cHashMap\u7684\u5927\u5c0f\u8d85\u8fc7\u4e86\u8d1f\u8f7d\u56e0\u5b50(load factor)\u5b9a\u4e49\u7684\u5bb9\u91cf\uff0c\u600e\u4e48\u529e<\/li> \n
- HashMap \u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u5417\uff1f\u5e76\u53d1\u4e0b\u4f7f\u7528\u7684 Map \u662f\u4ec0\u4e48\uff0c\u5b83\u4eec\u5185\u90e8\u539f\u7406\u5206\u522b\u662f\u4ec0\u4e48\uff0c\u6bd4\u5982\u5b58\u50a8\u65b9\u5f0f\u3001 hashcode\u3001\u6269\u5bb9\u3001 \u9ed8\u8ba4\u5bb9\u91cf\u7b49<\/li> \n <\/ul> \n
HashSet<\/strong><\/p> \n \n - HashSet\u548cTreeSet\u6709\u4ec0\u4e48\u533a\u522b<\/li> \n
- HashSet \u5185\u90e8\u662f\u5982\u4f55\u5de5\u4f5c\u7684<\/li> \n
- WeakHashMap \u662f\u600e\u4e48\u5de5\u4f5c\u7684\uff1f<\/li> \n <\/ul> \n
Set<\/strong><\/p> \n \n - Set \u91cc\u7684\u5143\u7d20\u662f\u4e0d\u80fd\u91cd\u590d\u7684\uff0c\u90a3\u4e48\u7528\u4ec0\u4e48\u65b9\u6cd5\u6765\u533a\u5206\u91cd\u590d\u4e0e\u5426\u5462\uff1f\u662f","orderid":"0","title":"Java \u9762\u8bd5\u9898\uff1a\u767e\u5ea6\u524d200\u9875\u90fd\u5728\u8fd9\u91cc\u4e86(\u4e00)","smalltitle":"","mid":"0","fname":"JAVA","special_id":"0","bak_id":"0","info":"0","hits":"1188","pages":"6","comments":"0","posttime":"2017-11-13 14:55:53","list":"1510556153","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"Java<\/A> \u8bd5\u9898<\/A> \u767e\u5ea6<\/A> 200<\/A> \u90fd\u5728<\/A> \u8fd9\u91cc<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"14.20.28.7","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"Java \u9762\u8bd5\u9898\uff1a\u767e\u5ea6\u524d200\u9875\u90fd\u5728\u8fd9\u91cc\u4e86","lastview":"1713396223","digg_num":"0","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}