{"id":990,"date":"2018-09-17T19:05:32","date_gmt":"2018-09-17T10:05:32","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=990"},"modified":"2024-07-04T15:05:01","modified_gmt":"2024-07-04T06:05:01","slug":"danh-sach-thuoc-tinh-he-thong","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/vi\/blog\/java\/system-getproperties-list","title":{"rendered":"Hi\u1ec3n th\u1ecb c\u00e1c thu\u1ed9c t\u00ednh h\u1ec7 th\u1ed1ng Java \u1edf \u0111\u1ecbnh d\u1ea1ng d\u1ec5 \u0111\u1ecdc."},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">Java <strong>Thu\u1ed9c t\u00ednh h\u1ec7 th\u1ed1ng<\/strong>K\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 b\u1ea3ng ch\u1eef c\u00e1i <strong>System.getProperties()<\/strong><\/a><\/h2>\n<p>\n<strong>Java<\/strong>\u3067<strong>Thu\u1ed9c t\u00ednh h\u1ec7 th\u1ed1ng<\/strong>Ch\u01b0\u01a1ng tr\u00ecnh v\u00ed d\u1ee5 n\u00e0y xu\u1ea5t ra c\u00e1c kh\u00f3a v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed9t t\u1ec7p theo th\u1ee9 t\u1ef1 b\u1ea3ng ch\u1eef c\u00e1i \u0111\u1ec3 d\u1ec5 d\u00e0ng xem.<br>\nD\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u01b0\u1edbc ti\u00ean trong m\u1ed9t TreeMap, sau \u0111\u00f3 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 b\u1ea3ng ch\u1eef c\u00e1i tr\u01b0\u1edbc khi xu\u1ea5t ra.\n<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p sau \u0111\u00e2y th\u01b0\u1eddng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb, nh\u01b0ng c\u00e1c gi\u00e1 tr\u1ecb b\u1ecb c\u1eaft ng\u1eafn v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 b\u1ea3ng ch\u1eef c\u00e1i, khi\u1ebfn vi\u1ec7c \u0111\u1ecdc tr\u1edf n\u00ean r\u1ea5t kh\u00f3 kh\u0103n.<\/p>\n<div class=\"point\">\n<strong>Thu\u1ed9c t\u00ednh props = System.getProperties();<\/strong><br>\n<strong>props.list(System.out);<\/strong>\n<\/div>\n<pre style=\"height:100px;overflow:scroll;\" class=\"console\">-- li\u1ec7t k\u00ea c\u00e1c thu\u1ed9c t\u00ednh -- java.runtime.name=Java(TM) 2 Runtime Environment, Standard... sun.boot.library.path=C:\\develop\\Java\\jdk1.5.0_08\\jre\\bin java.vm.version=1.5.0_08-b03 java.vm.vendor=Sun Microsystems Inc. java.vendor.url=http:\/\/java.sun.com\/ path.separator=; java.vm.name=Java HotSpot(TM) Client VM file.encoding.pkg=sun.io user.country=JP sun.os.patch.level=Service Pack 2 java.vm.specification.name=Java Virtual Machine Specification user.dir=C:\\apps\\0-app java.runtime.version=1.5.0_08-b03 java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment java.endorsed.dirs=C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\e... os.arch=x86 java.io.tmpdir=C:\\DOCUME~1\\***\\LOCALS~1\\Temp\\ line.separator= java.vm.specification.vendor=Sun Microsystems Inc. user.variant= os.name=Windows XP sun.jnu.encoding=MS932 java.library.path=C:\\develop\\Java\\jdk1.5.0_08\\bin;.;C:\\... java.specification.name=Java Platform API Specification java.class.version=49.0 sun.management.compiler=HotSpot Client Compiler os.version=5.1 user.home=C:\\Documents and Settings\\**** user.timezone= java.awt.printerjob=sun.awt.windows.WPrinterJob file.encoding=MS932 java.specification.version=1.5 user.name=**** java.class.path=C:\\apps\\0-app\\bin;C:\\apps\\0-app\\jre1.... java.vm.specification.version=1.0 sun.arch.data.model=32 java.home=C:\\develop\\Java\\jdk1.5.0_08\\jre java.specification.vendor=Sun Microsystems Inc. user.language=ja awt.toolkit=sun.awt.windows.WToolkit java.vm.info=ch\u1ebf \u0111\u1ed9 h\u1ed7n h\u1ee3p, chia s\u1ebb java.version=1.5.0_08 java.ext.dirs=C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\ext sun.boot.class.path=C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\r... java.vendor=Sun Microsystems Inc. file.separator=\\ java.vendor.url.bug=http:\/\/java.sun.com\/cgi-bin\/bugreport... sun.cpu.endian=little sun.io.unicode.encoding=UnicodeLittle sun.desktop=windows sun.cpu.isalist=pentium_pro+mmx pentium_pro pentium+m...\n<\/pre>\n<p><script type=\"text\/javascript\" src=\"https:\/\/chat-messenger.com\/js\/common.js?dd12sssas2223\" charset=\"UTF-8\"><\/script><br>\n<script type=\"text\/javascript\"> writePR(); <\/script><\/p>\n<h2 class=\"common_title\"><a name=\"1\">Ch\u01b0\u01a1ng tr\u00ecnh m\u1eabu<\/a><\/h2>\n<pre class=\"sample_src\">\/**\n * \u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u30ad\u30fc\u3068\u5024\u3092\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u9806\u306b\u51fa\u529b\u3057\u307e\u3059\u3002\n *\/\npublic static void outputSystemProperties() {\n    Properties p = System.getProperties();\n    TreeMap map = new TreeMap();\n    map.putAll(p);\n    Iterator itr = map.keySet().iterator();\n    while (itr.hasNext()) {\n        String key = (String)itr.next();\n        String value = (String)map.get(key);\n        System.out.println(key + \"=\" + value);\n    }\n}\n<\/pre>\n\n<h2 class=\"common_title\"><a name=\"2\">K\u1ebft qu\u1ea3 th\u1ef1c thi<\/a><\/h2>\n<p>\u25c6V\u00ed d\u1ee5<\/p>\n<pre class=\"sample_src\">public static void main(String[] args) { outputSystemProperties(); }\n<\/pre>\n<p>\u25c6K\u1ebft qu\u1ea3 \u0111\u1ea7u ra<\/p>\n<pre style=\"height:300px;overflow:scroll;overflow-x:scroll;overflow-y:scroll\" class=\"console\">awt.toolkit=sun.awt.windows.WToolkit file.encoding=MS932 file.encoding.pkg=sun.io file.separator=\\ java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment java.awt.printerjob=sun.awt.windows.WPrinterJob java.class.path=C:\\apps\\0-app\\bin;C:\\apps\\0-app\\jre1.6.0\\lib\\rt.jar;C:\\apps\\0-app\\sys\\lib\\bcprov-jdk14-123.jar java.class.version=49.0 java.endorsed.dirs=C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\endorsed java.ext.dirs=C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\ext java.home=C:\\develop\\Java\\jdk1.5.0_08\\jre java.io.tmpdir=C:\\DOCUME~1\\***\\LOCALS~1\\Temp\\ java.library.path=C:\\develop\\Java\\jdk1.5.0_08\\bin;.;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\develop\\Java\\jdk1.5.0_08\\bin;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\ProgramFilesDevelop\\TOOLS\\ant-1.6.1\\bin;C:\\develop\\eclipse32\\extensions\\tptp-4.2.0\\agent-controller\\\\bin;C:\\Program Files\\QuickTime\\QTSystem\\ java.runtime.name=Java(TM) 2 Runtime Environment, Standard Edition java.runtime.version=1.5.0_08-b03 java.specification.name=Java Platform API Specification java.specification.vendor=Sun Microsystems Inc. java.specification.version=1.5 java.vendor=Sun Microsystems Inc. java.vendor.url=http:\/\/java.sun.com\/ java.vendor.url.bug=http:\/\/java.sun.com\/cgi-bin\/bugreport.cgi java.version=1.5.0_08 java.vm.info=mixed mode, sharing java.vm.name=Java HotSpot(TM) Client VM java.vm.specification.name=Java Virtual Machine Specification java.vm.specification.vendor=Sun Microsystems Inc. java.vm.specification.version=1.0 java.vm.vendor=Sun Microsystems Inc. java.vm.version=1.5.0_08-b03 line.separator= os.arch=x86 os.name=Windows XP os.version=5.1 path.separator=; sun.arch.data.model=32 sun.boot.class.path=C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\rt.jar;C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\i18n.jar;C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\sunrsasign.jar;C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\jsse.jar;C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\jce.jar;C:\\develop\\Java\\jdk1.5.0_08\\jre\\lib\\charsets.jar;C:\\develop\\Java\\jdk1.5.0_08\\jre\\classes sun.boot.library.path=C:\\develop\\Java\\jdk1.5.0_08\\jre\\bin sun.cpu.endian=little sun.cpu.isalist=pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86 sun.desktop=windows sun.io.unicode.encoding=UnicodeLittle sun.jnu.encoding=MS932 sun.management.compiler=HotSpot Client Compiler sun.os.patch.level=Service Pack 2 user.country=JP user.dir=C:\\apps\\0-app user.home=C:\\Documents and Settings\\*** user.language=ja user.name=*** user.timezone= user.variant=\n<\/pre>\n<p>T\u1ea5t c\u1ea3 th\u00f4ng tin \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb theo th\u1ee9 t\u1ef1 b\u1ea3ng ch\u1eef c\u00e1i.<br>\n\u0110\u1eb7c bi\u1ec7t, n\u1ebfu c\u00e1c t\u1ec7p nh\u01b0 java.class.path v\u00e0 java.library.path kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u0111\u1ea7y \u0111\u1ee7, vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 s\u1ebd m\u1ea5t r\u1ea5t nhi\u1ec1u th\u1eddi gian.<\/p>\n<div class=\"point\">\njava.class.path=C:\\apps\\0-app\\bin;C:\\apps\\0-app\\jre1\u2026.<br>\n\u2193<br>\njava.class.path=C:\\apps\\0-app\\bin;C:\\apps\\0-app\\jre1.6.0\\lib\\rt.jar;C:\\apps\\0-app\\sys\\lib\\bcprov-jdk14-123.jar\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">b\u1ea3n t\u00f3m t\u1eaft<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch s\u1eafp x\u1ebfp v\u00e0 xu\u1ea5t c\u00e1c thu\u1ed9c t\u00ednh h\u1ec7 th\u1ed1ng Java theo th\u1ee9 t\u1ef1 b\u1ea3ng ch\u1eef c\u00e1i \u0111\u1ec3 d\u1ec5 xem h\u01a1n. Ph\u01b0\u01a1ng ph\u00e1p xu\u1ea5t thu\u1ed9c t\u00ednh th\u00f4ng th\u01b0\u1eddng kh\u00f3 \u0111\u1ecdc v\u00ec th\u00f4ng tin b\u1ecb c\u1eaft ng\u1eafn ho\u1eb7c hi\u1ec3n th\u1ecb kh\u00f4ng theo th\u1ee9 t\u1ef1.<code>B\u1ea3n \u0111\u1ed3 c\u00e2y<\/code>B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 s\u1eafp x\u1ebfp v\u00e0 xu\u1ea5t ra c\u00e1c thu\u1ed9c t\u00ednh, vi\u1ec7c hi\u1ec3u v\u1ea5n \u0111\u1ec1 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. M\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh m\u1eabu c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p, cho th\u1ea5y c\u00e1ch th\u1ee9c \u0111\u1ec3 c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean Java ki\u1ec3m tra c\u00e1c thu\u1ed9c t\u00ednh h\u1ec7 th\u1ed1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh Java, c\u00e1c d\u1ef1 \u00e1n t\u1ef1 do r\u1ea5t \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch. \u0110i\u1ec1u n\u00e0y l\u00e0 do Java \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c h\u1ec7 th\u1ed1ng kinh doanh c\u1ed1t l\u00f5i v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng web, d\u1eabn \u0111\u1ebfn nhu c\u1ea7u cao. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Java cho c\u00f4ng vi\u1ec7c t\u1ef1 do, b\u1ea1n kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 t\u0103ng thu nh\u1eadp m\u00e0 c\u00f2n n\u00e2ng cao k\u1ef9 n\u0103ng v\u00e0 ti\u1ebfp thu c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi.<\/p>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">Truy\u1ec1n th\u00f4ng t\u1ef1 do \u0111a d\u1ea1ng...<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/freelance.indieverse.co.jp\/media\/wp-content\/uploads\/2020\/08\/wes-hicks-4-EeTnaC1S4-unsplash-scaled.jpg\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/dividable.net\/sidework\/how-to-earn-money-by-programming-sidework\" target=\"_blank\" rel=\"noopener noreferrer\">Li\u1ec7u b\u1ea1n c\u00f3 th\u1ec3 ki\u1ebfm ti\u1ec1n t\u1eeb c\u00e1c c\u00f4ng vi\u1ec7c l\u1eadp tr\u00ecnh b\u00e1n th\u1eddi gian ngay c\u1ea3 khi kh\u00f4ng c\u00f3 kinh nghi\u1ec7m? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u c\u00e1ch b\u1eaft \u0111\u1ea7u, m\u00f4 t\u1ea3 c\u00f4ng vi\u1ec7c v\u00e0 c\u00e1c d\u1ef1 \u00e1n ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/a>\n\t\t\t\t\t\t<span class=\"p-blogCard__excerpt\">B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch c\u00e1c b\u01b0\u1edbc v\u00e0 quy tr\u00ecnh l\u1ef1a ch\u1ecdn \u0111\u1ec3 ki\u1ebfm ti\u1ec1n th\u00f4ng qua c\u00e1c c\u00f4ng vi\u1ec7c l\u1eadp tr\u00ecnh b\u00e1n th\u1eddi gian. T\u1eeb \u0111\u00e1nh gi\u00e1 k\u1ef9 n\u0103ng v\u00e0 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ea1i l\u00fd, ch\u00fang t\u00f4i \u0111\u1ec1u \u0111\u1ec1 c\u1eadp \u0111\u1ebfn\u2026<\/span>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Java \u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u9806\u306b\u51fa\u529b System.getProperties() Java\u3067 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[19],"tags":[],"class_list":["post-990","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/comments?post=990"}],"version-history":[{"count":5,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/990\/revisions"}],"predecessor-version":[{"id":11098,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/990\/revisions\/11098"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/media?parent=990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/categories?post=990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/tags?post=990"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}