{"id":9833,"date":"2023-11-28T21:15:41","date_gmt":"2023-11-28T13:15:41","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=9833"},"modified":"2023-11-28T21:15:45","modified_gmt":"2023-11-28T13:15:45","slug":"java-zhongstring-hestringbufferstringbuilder-de-qu","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/java-zhongstring-hestringbufferstringbuilder-de-qu\/","title":{"rendered":"Java\u4e2dString\u548cStringBuffer\u3001StringBuilder\u7684\u533a\u522b\u662f\u4ec0\u4e48?"},"content":{"rendered":"<p>\u53ef\u53d8\u6027<br \/>\nString\u7c7b\u4e2d\u4f7f\u7528\u5b57\u7b26\u6570\u7ec4\u4fdd\u5b58\u5b57\u7b26\u4e32\uff0c private final char value[],\u6240\u4ee5string\u5bf9\u8c61\u662f\u4e0d\u53ef\u53d8\u7684\u3002StringBuilder \u4e0e StringBuffer\u90fd\u7ee7\u627f\u81eaAbstractStringBuilder\u7c7b\uff0c\u5728AbstractStringBuilder\u4e2d\u4e5f\u662f\u4f7f\u7528\u5b57\u7b26\u6570\u7ec4\u4fdd\u5b58\u5b57\u7b26\u4e32,char[] value,\u8fd9\u4e24\u79cd\u5bf9\u8c61\u90fd\u662f\u53ef\u53d8\u7684\u3002<br \/>\n\u7ebf\u7a0b\u5b89\u5168\u6027<br \/>\nString\u4e2d\u7684\u5bf9\u8c61\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u4e5f\u5c31\u53ef\u4ee5\u7406\u89e3\u4e3a\u5e38\u91cf\uff0c\u7ebf\u7a0b\u5b89\u5168\u3002<br \/>\nAbstractStringBuilder\u662f StringBuilder \u4e0e StringBuffer\u7684\u516c\u5171\u7236\u7c7b\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e9b\u5b57\u7b26\u4e32\u7684\u57fa\u672c\u64cd\u4f5c\uff0c\u5982expandCapacity\u3001append\u3001insert\u3001indexOf\u7b49\u516c\u5171\u65b9\u6cd5\u3002StringBuffer\u5bf9\u65b9\u6cd5\u52a0\u4e86\u540c\u6b65\u9501\u6216\u8005\u5bf9\u8c03\u7528\u7684\u65b9\u6cd5\u52a0\u4e86\u540c\u6b65\u9501\uff0c\u6240\u4ee5\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002StringBuilder\u5e76\u6ca1\u6709\u5bf9\u65b9\u6cd5\u8fdb\u884c\u52a0\u540c\u6b65\u9501\uff0c\u6240\u4ee5\u662f\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<br \/>\n\u6027\u80fd<br \/>\n\u6bcf\u6b21\u5bf9String \u7c7b\u578b\u8fdb\u884c\u6539\u53d8\u7684\u65f6\u5019\uff0c\u90fd\u4f1a\u751f\u6210\u4e00\u4e2a\u65b0\u7684String\u5bf9\u8c61\uff0c\u7136\u540e\u5c06\u6307\u9488\u6307\u5411\u65b0\u7684String\u5bf9\u8c61\u3002StringBuffer\u6bcf\u6b21\u90fd\u4f1a\u5bf9StringBuffer\u5bf9\u8c61\u672c\u8eab\u8fdb\u884c\u64cd\u4f5c\uff0c\u800c\u4e0d\u662f\u751f\u6210\u65b0\u7684\u5bf9\u8c61\u5e76\u6539\u53d8\u5bf9\u8c61\u5f15\u7528\u3002\u76f8\u540c\u60c5\u51b5\u4e0b\u4f7f\u7528StirngBuilder \u76f8\u6bd4\u4f7f\u7528StringBuffer\u4ec5\u80fd\u83b7\u5f9710%~15%\u5de6\u53f3\u7684\u6027\u80fd\u63d0\u5347\uff0c\u4f46\u5374\u8981\u5192\u591a\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u98ce\u9669\u3002<br \/>\n\u5bf9\u4e8e\u4e09\u8005\u4f7f\u7528\u7684\u603b\u7ed3:<br \/>\n\u5982\u679c\u8981\u64cd\u4f5c\u5c11\u91cf\u7684\u6570\u636e\u7528 = String \u5355<br \/>\n\u7ebf\u7a0b\u64cd\u4f5c\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u4e0b\u64cd\u4f5c\u5927\u91cf\u6570\u636e = StringBuilder<br \/>\n\u591a\u7ebf\u7a0b\u64cd\u4f5c\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u4e0b\u64cd\u4f5c\u5927\u91cf\u6570\u636e = StringBuffer<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53ef\u53d8\u6027 String\u7c7b\u4e2d\u4f7f\u7528\u5b57\u7b26\u6570\u7ec4\u4fdd\u5b58\u5b57\u7b26\u4e32\uff0c private final char value[],\u6240\u4ee5s [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[99],"tags":[],"class_list":["post-9833","post","type-post","status-publish","format-standard","hentry","category-javabase"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9833","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=9833"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9833\/revisions"}],"predecessor-version":[{"id":9834,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9833\/revisions\/9834"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=9833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=9833"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=9833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}