{"id":921,"date":"2018-09-17T18:25:40","date_gmt":"2018-09-17T09:25:40","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=921"},"modified":"2018-12-23T02:00:59","modified_gmt":"2018-12-22T17:00:59","slug":"string-lpad-rpad","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/hi\/\u092c\u094d\u0932\u0949\u0917\/java\/\u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917-\u090f\u0932\u092a\u0948\u0921-\u0906\u0930\u092a\u0948\u0921","title":{"rendered":"\u091c\u093e\u0935\u093e \u090f\u0932\u092a\u0940\u090f\u0921\u0940, \u0906\u0930\u092a\u0940\u090f\u0921\u0940 \u0915\u0947 \u0938\u093e\u0925 \u092b\u093c\u0949\u0930\u094d\u092e\u0947\u091f\u093f\u0902\u0917"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">\u091c\u093e\u0935\u093e \u090f\u0932\u092a\u0940\u090f\u0921\u0940, \u0906\u0930\u092a\u0940\u090f\u0921\u0940 \u0915\u0947 \u0938\u093e\u0925 \u0938\u094d\u0935\u0930\u0942\u092a\u093f\u0924\u0964 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u092c\u093e\u090f\u0901 \u0914\u0930 \u0926\u093e\u090f\u0901 \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0935\u0930\u094d\u0923 \u092d\u0930\u0947\u0902<\/a><\/h2>\n<p>\n<strong>\u091c\u093e\u0935\u093e<\/strong>\u092b\u093f\u0930, \u0906\u092a \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917\u094d\u0938 \u0915\u0947 \u0932\u093f\u090f SQL \u092b\u093c\u0902\u0915\u094d\u0936\u0928 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964<strong>\u090f\u0932\u092a\u0940\u090f\u0921\u0940<\/strong>,<strong>\u0906\u0930\u092a\u0940\u090f\u0921\u0940<\/strong>\u092f\u0939\u093e\u0902 \u090f\u0915 \u0928\u092e\u0942\u0928\u093e \u0938\u094d\u0930\u094b\u0924 \u0939\u0948 \u091c\u094b \u0938\u092e\u093e\u0928 \u092a\u094d\u0930\u0915\u094d\u0930\u093f\u092f\u093e \u0928\u093f\u0937\u094d\u092a\u093e\u0926\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964<br \/>\n\u092f\u0947 \u0939\u0948\u0902<strong>\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u0932\u0902\u092c\u093e\u0908 \u092a\u094d\u0930\u093e\u0930\u0942\u092a<\/strong>\u0935\u094d\u092f\u0935\u0939\u093e\u0930 \u0915\u0930\u0924\u0947 \u0938\u092e\u092f \u092c\u0939\u0941\u0924 \u0909\u092a\u092f\u094b\u0917\u0940\u0964\n<\/p>\n<ul>\n<li><strong>\u090f\u0932\u092a\u0940\u090f\u0921\u0940<\/strong>...\u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u092c\u093e\u0908\u0902 \u0913\u0930 \u0926\u094b\u0939\u0930\u093e\u090f \u0917\u090f \u0935\u0930\u094d\u0923\u094b\u0902 \u0938\u0947 \u092d\u0930\u0940 \u090f\u0915 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0932\u094c\u091f\u093e\u0924\u093e \u0939\u0948 \u0924\u093e\u0915\u093f \u0935\u0930\u094d\u0923\u094b\u0902 \u0915\u0940 \u0915\u0941\u0932 \u0938\u0902\u0916\u094d\u092f\u093e \u0905\u0902\u0915\u094b\u0902 \u0915\u0940 \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0964<\/li>\n<li><strong>\u0906\u0930\u092a\u0940\u090f\u0921\u0940<\/strong>...\u090f\u0915 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u0926\u093e\u0908\u0902 \u0913\u0930 \u090f\u0915 \u0926\u094b\u0939\u0930\u093e\u0908 \u0917\u0908 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u094b \u092d\u0930\u0924\u093e \u0939\u0948 \u0914\u0930 \u0932\u094c\u091f\u093e\u0924\u093e \u0939\u0948 \u0924\u093e\u0915\u093f \u0935\u0930\u094d\u0923\u094b\u0902 \u0915\u0940 \u0915\u0941\u0932 \u0938\u0902\u0916\u094d\u092f\u093e \u0905\u0902\u0915\u094b\u0902 \u0915\u0940 \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0964<\/li>\n<\/ul>\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\">\u0928\u092e\u0942\u0928\u093e \u0915\u093e\u0930\u094d\u092f\u0915\u094d\u0930\u092e<\/a><\/h2>\n<p><textarea readonly=\"readonly\" style=\"font-size: 13px;height: 400px;\" class=\"src\" onclick=\"this.focus();this.select()\">\/**<br \/>\n * LPAD\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\n * \u6587\u5b57\u5217[str]\u306e\u5de6\u306b\u6307\u5b9a\u3057\u305f\u6587\u5b57\u5217[addStr]\u3092[len]\u306b<br \/>\n * \u6e80\u305f\u3059\u307e\u3067\u633f\u5165\u3057\u307e\u3059\u3002<br \/>\n * @param str \u5bfe\u8c61\u6587\u5b57\u5217<br \/>\n * @param len \u88dc\u5145\u3059\u308b\u307e\u3067\u306e\u6841\u6570\uff08LPAD\u3092\u884c\u3063\u305f\u5f8c\u306e\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\uff09<br \/>\n * @param addStr \u633f\u5165\u3059\u308b\u6587\u5b57\u5217<br \/>\n * @return \u5909\u63db\u5f8c\u306e\u6587\u5b57\u5217\u3002<br \/>\n *\/<br \/>\npublic static String lpad(String str, int len, String addStr) {<br \/>\n    return fillString(str, &#8220;L&#8221;, len, addStr);<br \/>\n}<\/p>\n<p>\/**<br \/>\n * \u0906\u0930\u092a\u0940\u090f\u0921\u0940 \u0928\u093f\u0937\u094d\u092a\u093e\u0926\u093f\u0924 \u0915\u0930\u0947\u0902\u0964<br \/>\n * \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u0926\u093e\u0908\u0902 \u0913\u0930 \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 [addStr] \u091c\u094b\u0921\u093c\u0947\u0902 [str] \u0938\u0947 [len]<br \/>\n *\u092a\u0942\u0930\u093e \u0939\u094b\u0928\u0947 \u0924\u0915 \u0921\u093e\u0932\u0947\u0902.<br \/>\n * @param str \u0932\u0915\u094d\u0937\u094d\u092f \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917<br \/>\n * @\u092a\u0930\u092e \u0932\u0947\u0928 \u092a\u0941\u0928\u0903 \u092d\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0905\u0902\u0915\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e (\u0906\u0930\u092a\u0940\u090f\u0921\u0940 \u0928\u093f\u0937\u094d\u092a\u093e\u0926\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u092c\u093e\u0926 \u0906\u0915\u093e\u0930 \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0915\u0930\u0924\u093e \u0939\u0948)<br \/>\n * @param addStr \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0921\u093e\u0932\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<br \/>\n * @\u0930\u0942\u092a\u093e\u0902\u0924\u0930\u0923 \u0915\u0947 \u092c\u093e\u0926 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0935\u093e\u092a\u0938 \u0915\u0930\u0947\u0902\u0964<br \/>\n *\/<br \/>\n\u0938\u093e\u0930\u094d\u0935\u091c\u0928\u093f\u0915 \u0938\u094d\u0925\u0948\u0924\u093f\u0915 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0906\u0930\u092a\u0948\u0921 (\u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0938\u094d\u091f\u094d\u0930, \u0907\u0902\u091f \u0932\u0947\u0928, \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0910\u0921\u0938\u094d\u091f\u094d\u0930) {<br \/>\n    \u0930\u093f\u091f\u0930\u094d\u0928 \u092b\u093f\u0932\u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 (str, &quot;R&quot;, len, addStr);<br \/>\n}<\/p>\n<p>\/**<br \/>\n * \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 [str] \u092e\u0947\u0902 \u091c\u094b\u0921\u093c\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 [addStr] \u091c\u094b\u0921\u093c\u0947\u0902<br \/>\n * [\u0932\u0947\u0928] \u092d\u0930 \u091c\u093e\u0928\u0947 \u0924\u0915 [\u0938\u094d\u0925\u093f\u0924\u093f] \u092a\u0930 \u0921\u093e\u0932\u0947\u0902\u0964<br \/>\n *<br \/>\n * *\u092f\u0939\u093e\u0902 \u0924\u0915 \u0915\u093f \u0905\u0917\u0930 [str] \u0936\u0942\u0928\u094d\u092f \u092f\u093e \u0916\u093e\u0932\u0940 \u0936\u093e\u092c\u094d\u0926\u093f\u0915 \u0939\u0948, \u0924\u094b [addStr] \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0947\u0902<br \/>\n * [\u0932\u0947\u0928] \u092d\u0930\u0928\u0947 \u0924\u0915 \u0921\u093e\u0932\u093e \u0917\u092f\u093e \u092a\u0930\u093f\u0923\u093e\u092e \u0932\u094c\u091f\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n * @param str \u0932\u0915\u094d\u0937\u094d\u092f \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917<br \/>\n * @\u092a\u0930\u092e \u0938\u094d\u0925\u093f\u0924\u093f \u21d2 L \u092f\u093e l \u0938\u0947 \u092a\u0939\u0932\u0947 \u0921\u093e\u0932\u0947\u0902 \u21d2 R \u092f\u093e r \u0915\u0947 \u092c\u093e\u0926 \u0921\u093e\u0932\u0947\u0902<br \/>\n * @\u092a\u0930\u092e \u0932\u0947\u0928 \u092a\u0941\u0928\u0903 \u092d\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0905\u0902\u0915\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<br \/>\n * @param addStr \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0921\u093e\u0932\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<br \/>\n * @\u0930\u0942\u092a\u093e\u0902\u0924\u0930\u0923 \u0915\u0947 \u092c\u093e\u0926 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0935\u093e\u092a\u0938 \u0915\u0930\u0947\u0902\u0964<br \/>\n *\/<br \/>\n\u0938\u093e\u0930\u094d\u0935\u091c\u0928\u093f\u0915 \u0938\u094d\u0925\u0948\u0924\u093f\u0915 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 fillString(\u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 str, \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0938\u094d\u0925\u093f\u0924\u093f,<br \/>\n        \u0907\u0902\u091f \u0932\u0947\u0928,<br \/>\n        \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 addStr) {<br \/>\n    \u092f\u0926\u093f (addStr == null || addStr.length() == 0) {<br \/>\n        \u0928\u092f\u093e IllegalArgumentException \u092b\u0947\u0902\u0915\u0947\u0902<br \/>\n            (&quot;\u0921\u093e\u0932\u0940 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0940 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u093e \u092e\u093e\u0928 \u0905\u092e\u093e\u0928\u094d\u092f \u0939\u0948\u0964 addStr=&quot;+addStr);<br \/>\n    }<br \/>\n    \u0905\u0917\u0930 (str == \u0936\u0942\u0928\u094d\u092f) {<br \/>\n        str = &quot;&quot;;<br \/>\n    }<br \/>\n    \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917\u092c\u092b\u093c\u0930 \u092c\u092b\u093c\u0930 = \u0928\u092f\u093e \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917\u092c\u092b\u093c\u0930(str);<br \/>\n    \u091c\u092c\u0915\u093f (\u0932\u0947\u0928 &gt; \u092c\u092b\u0930.\u0932\u0902\u092c\u093e\u0908()) {<br \/>\n        \u092f\u0926\u093f (\u0938\u094d\u0925\u093f\u0924\u093f.\u092c\u0930\u093e\u092c\u0930 \u0907\u0917\u094d\u0928\u094b\u0930\u0915\u0947\u0938(\u201c\u090f\u0932\u201d)) {<br \/>\n            \u092a\u0942\u0930\u094d\u0923\u093e\u0902\u0915 \u092f\u094b\u0917 = \u092c\u092b\u0930.\u0932\u0902\u092c\u093e\u0908() + addStr.length();<br \/>\n            \u092f\u0926\u093f (\u092f\u094b\u0917 &gt; \u0932\u0947\u0928) {<br \/>\n                addStr = addStr.substring<br \/>\n                    (0,addStr.length() - (\u092f\u094b\u0917 - \u0932\u0947\u0928));<br \/>\n                \u092c\u092b\u093c\u0930.\u0907\u0928\u094d\u0938\u0930\u094d\u091f(0, addStr);<br \/>\n            }\u0905\u0928\u094d\u092f{<br \/>\n                \u092c\u092b\u093c\u0930.\u0907\u0928\u094d\u0938\u0930\u094d\u091f(0, addStr);<br \/>\n            }<br \/>\n        } \u0905\u0928\u094d\u092f {<br \/>\n            \u092c\u092b\u0930.\u090f\u092a\u0947\u0902\u0921 (\u090f\u0921\u0938\u094d\u091f\u094d\u0930);<br \/>\n        }<br \/>\n    }<br \/>\n    \u0905\u0917\u0930 (\u092c\u092b\u093c\u0930.\u0932\u0902\u092c\u093e\u0908() == \u0932\u0947\u0928) {<br \/>\n        \u0935\u093e\u092a\u0938\u0940 \u092c\u092b\u093c\u0930.toString();<br \/>\n    }<br \/>\n    \u0935\u093e\u092a\u0938\u0940 \u092c\u092b\u093c\u0930.toString().substring(0, len);<br \/>\n}<br \/>\n<\/textarea><br \/>\n<\/p>\n<h2 class=\"common_title\"><a name=\"2\">\u0928\u093f\u0937\u094d\u092a\u093e\u0926\u0928 \u092a\u0930\u093f\u0923\u093e\u092e<\/a><\/h2>\n<p>\u25c6\u0928\u093f\u0937\u094d\u092a\u093e\u0926\u0928 \u0909\u0926\u093e\u0939\u0930\u0923<\/p>\n<pre class=\"sample_src\">\u0938\u093e\u0930\u094d\u0935\u091c\u0928\u093f\u0915 \u0938\u094d\u0925\u0948\u0924\u093f\u0915 \u0936\u0942\u0928\u094d\u092f \u092e\u0941\u0916\u094d\u092f(\u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917[] args) {\/\/ \u090f\u0932\u092a\u0948\u0921 \u0915\u0947 \u0932\u093f\u090f\u0964 \u091c\u092c \u0924\u0915 \u0906\u092a 5 \u0905\u0902\u0915\u094b\u0902 \u0924\u0915 \u0928\u0939\u0940\u0902 \u092a\u0939\u0941\u0902\u091a \u091c\u093e\u0924\u0947 \u0924\u092c \u0924\u0915 \u092c\u093e\u0908\u0902 \u0913\u0930 \u0930\u093f\u0915\u094d\u0924 \u0938\u094d\u0925\u093e\u0928 \u092d\u0930\u0947\u0902\u0964 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 ret = lpad(&quot;abc&quot;, 5 , &quot; &quot;); System.out.println(&quot;&#039;&quot; + ret + &quot;&#039;&quot;); \/\/ rpad \u0915\u0947 \u0932\u093f\u090f\u0964 \u091c\u092c \u0924\u0915 \u0906\u092a 5 \u0905\u0902\u0915\u094b\u0902 \u0924\u0915 \u0928\u0939\u0940\u0902 \u092a\u0939\u0941\u0902\u091a \u091c\u093e\u0924\u0947 \u0924\u092c \u0924\u0915 \u0926\u093e\u0908\u0902 \u0913\u0930 \u0930\u093f\u0915\u094d\u0924 \u0938\u094d\u0925\u093e\u0928 \u092d\u0930\u0947\u0902\u0964 ret = rpad(&quot;abc&quot;, 5 , &quot; &quot;); System.out.println(&quot;&#039;&quot; + ret + &quot;&#039;&quot;); \/\/ \u092f\u0926\u093f null ret = rpad(null, 5 , &quot; &quot;); System. out .println(&quot;&#039;&quot; + ret + &quot;&#039;&quot;); }\r\n<\/pre>\n<p>\u25c6\u0906\u0909\u091f\u092a\u0941\u091f \u092a\u0930\u093f\u0923\u093e\u092e<\/p>\n<pre class=\"console\">&#039;\u090f\u092c\u0940\u0938\u0940&#039; &#039;\u090f\u092c\u0940\u0938\u0940&#039; &#039;&#039;\r\n<\/pre>","protected":false},"excerpt":{"rendered":"<p>\u091c\u093e\u0935\u093e \u090f\u0932\u092a\u0940\u090f\u0921\u0940, \u0906\u0930\u092a\u0940\u090f\u0921\u0940 \u0915\u0947 \u0938\u093e\u0925 \u0938\u094d\u0935\u0930\u0942\u092a\u093f\u0924\u0964 \u0938\u094d\u091f\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u092c\u093e\u0908\u0902 \u0914\u0930 \u0926\u093e\u0908\u0902 \u0913\u0930 \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0935\u0930\u094d\u0923 \u092d\u0930\u0947\u0902 \u091c\u093e\u0935\u093e \u092e\u0947\u0902, SQL \u092b\u093c\u0902\u0915\u094d\u0936\u0928 L \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0947\u0902 [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/posts\/921"}],"collection":[{"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/comments?post=921"}],"version-history":[{"count":4,"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/posts\/921\/revisions"}],"predecessor-version":[{"id":1892,"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/posts\/921\/revisions\/1892"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/media?parent=921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/categories?post=921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/hi\/wp-json\/wp\/v2\/tags?post=921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}