{"id":3015,"date":"2013-01-11T04:58:19","date_gmt":"2013-01-11T04:58:19","guid":{"rendered":"http:\/\/ddolgi.pe.kr\/blog\/index.php\/2013\/01\/11\/javajava-%eb%ac%b8%eb%b2%95%ec%9d%b4-c%ec%99%80-%eb%8b%a4%eb%a5%b8-%ec%a0%90\/"},"modified":"2013-01-11T04:58:19","modified_gmt":"2013-01-11T04:58:19","slug":"javajava-%eb%ac%b8%eb%b2%95%ec%9d%b4-c%ec%99%80-%eb%8b%a4%eb%a5%b8-%ec%a0%90","status":"publish","type":"post","link":"http:\/\/ddolgi.pe.kr\/blog\/archives\/3015","title":{"rendered":"[Java]Java \ubb38\ubc95\uc774 C\uc640 \ub2e4\ub978 \uc810"},"content":{"rendered":"<p>Hadoop\uc758 MapReduce\ub97c \ud574\ubcf4\ub824\ub294\ub370, Java \ubb38\ubc95\uc774 \uc544\ub9ac\uc1a1\ud574\uc11c \ucc45\uc744 \uc9d1\uc5b4\ub4e4\uc5c8\ub2e4.<\/p>\n<p>\uc5ed\uc2dc\ub098 C\/C++\uc640 \ub2e4\ub978 \uc810\ub9cc \ucc45\uc5d0 \ud45c\uc2dc\ud558\ub370 \ub418\ub354\ub77c.&nbsp;<\/p>\n<p><\/p>\n<p>\ucc45\uc744 \uc77d\uace0 Java\uc5d0 \ub300\ud574 \ub4e0 \uc0dd\uac01\uc740, &#8216;\uc88b\uc740 \uc5b8\uc5b4&#8217;\ub77c\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>C\/C++\ubcf4\ub2e4 \uc18d\ub3c4\ub294 \uc870\uae08 \ub290\ub9b4\uc9c0\ub77c\ub3c4, \ubb38\ubc95\ub3c4 \ube44\uc2b7\ud558\uace0, \ubb34\uc5c7\ubcf4\ub2e4\ub3c4 \uc5b4\ub835\uace0 \ubb38\uc81c\uac00 \uc0dd\uae30\uae30 \uc26c\uc6b4 \ubd80\ubd84(\ud3ec\uc778\ud130, \uc804\uc5ed\ubcc0\uc218 \ub4f1)\uc774 \uc5c6\uc5b4\uc838\uc11c \uc88b\ub2e4.<\/p>\n<p>\ub364\uc73c\ub85c, \uc548\ub4dc\ub85c\uc774\ub4dc\ub294 \uac1c\ubc1c\uc5d0 \ub3c8\uc774 \uc548 \ub4e0\ub2e4\ub294 \uac70! \u314b (\uc2dc\ubbac\ub808\uc774\ud130\ub294 \ub290\ub9ac\ub2e4\uc9c0\ub9cc;;;)<\/p>\n<ul style=\"list-style-type: disc;\">\n<li>conventions<\/li>\n<ul style=\"list-style-type: disc;\">\n<li>class name ex: TestJava, BankUI<\/li>\n<li>method and variable name ex: idNo, processWork()<\/li>\n<li>enum: STATUS<\/li>\n<\/ul>\n<li>variable types:<\/li>\n<ul style=\"list-style-type: disc;\">\n<li>byte\/short\/int\/long : 1\/2\/4\/8 byte (default: 0)<\/li>\n<li>float\/double\/<span style=\"color: rgb(255, 0, 0);\">char<\/span>&nbsp;: 4\/8\/<span style=\"color: rgb(255, 0, 0);\">2<\/span>&nbsp;byte (default: 0)<\/li>\n<li>boolean : 1bit (default: false)<\/li>\n<\/ul>\n<li>if ( human <span style=\"color: rgb(255, 0, 0);\">instanceof<\/span> Mammal )<\/li>\n<li>== vs equals()<\/li>\n<ul style=\"list-style-type: disc;\">\n<li>==: \uac19\uc740 \uac1d\uccb4\ub97c \uac00\ub9ac\ud0a4\ub294\uac00?<\/li>\n<li>equals(): \ub0b4\uc6a9\uc774 \uac19\uc740\uac00?<\/li>\n<\/ul>\n<li>try { \uc2dc\ub3c4 } catch(Exception e){ \uc608\uc678 \ucc98\ub9ac } final{ \uaf2d&nbsp;\uc2e4\ud589&nbsp;}<\/li>\n<li>\uc811\uadfc\uc131<\/li>\n<ul style=\"list-style-type: disc;\">\n<li>private + same package : default(friendly)<\/li>\n<li>default(friendly) + subclass : protected<\/li>\n<li>protected + all classes : public<\/li>\n<\/ul>\n<li>class\uc758 \uad00\uacc4<\/li>\n<ul style=\"list-style-type: disc;\">\n<li>\uc0c1\uc18d(extends): only one<\/li>\n<li>\uad6c\ud604(implements): many abstract classes<\/li>\n<\/ul>\n<li>String\/StringBuffer\/StringTokenizer class<\/li>\n<li>for(String line : lines)<\/li>\n<\/ul>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hadoop\uc758 MapReduce\ub97c \ud574\ubcf4\ub824\ub294\ub370, Java \ubb38\ubc95\uc774 \uc544\ub9ac\uc1a1\ud574\uc11c \ucc45\uc744 \uc9d1\uc5b4\ub4e4\uc5c8\ub2e4. \uc5ed\uc2dc\ub098 C\/C++\uc640 \ub2e4\ub978 \uc810\ub9cc \ucc45\uc5d0 \ud45c\uc2dc\ud558\ub370 \ub418\ub354\ub77c.&nbsp; \ucc45\uc744 \uc77d\uace0 Java\uc5d0 \ub300\ud574 \ub4e0 \uc0dd\uac01\uc740, &#8216;\uc88b\uc740 \uc5b8\uc5b4&#8217;\ub77c\ub294 \uac83\uc774\ub2e4. C\/C++\ubcf4\ub2e4 \uc18d\ub3c4\ub294 \uc870\uae08 \ub290\ub9b4\uc9c0\ub77c\ub3c4, \ubb38\ubc95\ub3c4 \ube44\uc2b7\ud558\uace0, \ubb34\uc5c7\ubcf4\ub2e4\ub3c4 \uc5b4\ub835\uace0 \ubb38\uc81c\uac00 \uc0dd\uae30\uae30 \uc26c\uc6b4 \ubd80\ubd84(\ud3ec\uc778\ud130, \uc804\uc5ed\ubcc0\uc218 \ub4f1)\uc774 \uc5c6\uc5b4\uc838\uc11c \uc88b\ub2e4. \ub364\uc73c\ub85c, \uc548\ub4dc\ub85c\uc774\ub4dc\ub294 \uac1c\ubc1c\uc5d0 \ub3c8\uc774 \uc548 \ub4e0\ub2e4\ub294 \uac70! \u314b (\uc2dc\ubbac\ub808\uc774\ud130\ub294 \ub290\ub9ac\ub2e4\uc9c0\ub9cc;;;) conventions class name ex: TestJava, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[275],"tags":[],"class_list":["post-3015","post","type-post","status-publish","format-standard","hentry","category-275"],"_links":{"self":[{"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/posts\/3015","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/comments?post=3015"}],"version-history":[{"count":0,"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/posts\/3015\/revisions"}],"wp:attachment":[{"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/media?parent=3015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/categories?post=3015"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ddolgi.pe.kr\/blog\/wp-json\/wp\/v2\/tags?post=3015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}