{"id":265,"date":"2020-11-26T04:59:35","date_gmt":"2020-11-26T04:59:35","guid":{"rendered":"https:\/\/vukieuanh.com\/?p=265"},"modified":"2020-11-26T04:59:35","modified_gmt":"2020-11-26T04:59:35","slug":"contructor-cua-lop-wrapper","status":"publish","type":"post","link":"https:\/\/vukieuanh.net\/index.php\/2020\/11\/26\/contructor-cua-lop-wrapper\/","title":{"rendered":"Contructor c\u1ee7a l\u1edbp Wrapper"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>        Integer a = new Integer(\"abc\");<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ch\u01b0\u01a1ng tr\u00ecnh ch\u1ea1y \u0111\u1ebfn l\u1ec7nh tr\u00ean s\u1ebd n\u00e9m ra Excception <code>NumberFormatException&nbsp;<\/code>. V\u1eady Trong l\u1edbp Wrapper cho ph\u00e9p nh\u1eefng Contructor n\u00e0o? V\u00e0 c\u01a1 ch\u1ebf chuy\u1ec3n \u0111\u1ed5i c\u1ee7a n\u00f3 th\u1ebf n\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi contructor ch\u1ec9 c\u00f3 1 tham s\u1ed1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi contructor ch\u1ec9 c\u00f3 m\u1ed9t tham s\u1ed1 n\u00f3 ch\u1ec9 nh\u1eadn d\u1ea1ng s\u1ed1 d\u1ea1ng chu\u1ed7i s\u1ed1. Sau \u0111\u00f3 n\u00f3 t\u1ef1 chuy\u1ec3n sang c\u01a1 s\u1ed1 10 t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng th\u1ee9c kh\u1edfi t\u1ea1o n\u00e0y s\u1eed d\u1ee5ng h\u00e0m pasreInt( String str, 10). V\u00ec v\u1eady ch\u00fang ta t\u00ecm hi\u1ec3u ph\u01b0\u01a1ng th\u1ee9c pasreInt 1 ch\u00fat nh\u00e9. Ph\u01b0\u01a1ng th\u1ee9c n\u00e0y m\u1eb7c \u0111\u1ecbnh c\u01a1 s\u1ed1 10.  V\u00ed d\u1ee5 ch\u00fang ta c\u00f3 \u0111o\u1ea1n m\u00e3:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>        int a = Integer.parseInt(\"99\");\n        int b = Integer.parseInt(\"+99\");\n        int c = Integer.parseInt(\"-99\");\n        int d = Integer.parseInt(\"99\", 18);\n        int e = Integer.parseInt(\"ahihi\", 33);\n\n        System.out.println(a);\n        System.out.println(b);\n        System.out.println(c);\n        System.out.println(d);\n        System.out.println(e);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00ec ch\u00fang ta s\u1ebd c\u00f3 k\u1ebft qu\u1ea3 nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">99<br>99<br>-99<br>171<br>12490320<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi ch\u01b0\u01a1ng tr\u00ecnh ch\u1ea1y \u0111\u1ebfn l\u1ec7nh tr\u00ean s\u1ebd n\u00e9m ra Excception NumberFormatException&nbsp;. V\u1eady Trong l\u1edbp Wrapper cho ph\u00e9p nh\u1eefng Contructor n\u00e0o? V\u00e0 c\u01a1 ch\u1ebf chuy\u1ec3n \u0111\u1ed5i c\u1ee7a n\u00f3 th\u1ebf n\u00e0o. V\u1edbi contructor ch\u1ec9 c\u00f3 1 tham s\u1ed1 V\u1edbi contructor ch\u1ec9 c\u00f3 m\u1ed9t tham s\u1ed1 n\u00f3 ch\u1ec9 nh\u1eadn d\u1ea1ng s\u1ed1 d\u1ea1ng chu\u1ed7i s\u1ed1. Sau \u0111\u00f3 n\u00f3 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-265","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/posts\/265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/comments?post=265"}],"version-history":[{"count":4,"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/posts\/265\/revisions"}],"predecessor-version":[{"id":270,"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/posts\/265\/revisions\/270"}],"wp:attachment":[{"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/media?parent=265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/categories?post=265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vukieuanh.net\/index.php\/wp-json\/wp\/v2\/tags?post=265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}