{"id":117,"date":"2023-08-21T10:56:34","date_gmt":"2023-08-21T01:56:34","guid":{"rendered":"https:\/\/blog.mumooinfo.com\/?p=117"},"modified":"2023-10-10T22:41:33","modified_gmt":"2023-10-10T13:41:33","slug":"java%ec%9d%98-%eb%a9%94%ec%84%9c%eb%93%9c-exception","status":"publish","type":"post","link":"https:\/\/mumooinfo.com\/programming\/java%ec%9d%98-%eb%a9%94%ec%84%9c%eb%93%9c-exception\/","title":{"rendered":"JAVA\uc758 \uba54\uc11c\ub4dc Exception"},"content":{"rendered":"\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"533\" height=\"533\" class=\"wp-image-118 aligncenter\" src=\"https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-3-1.jpg\" alt=\"\" srcset=\"https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-3-1.jpg 533w, https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-3-1-300x300.jpg 300w, https:\/\/mumooinfo.com\/wp-content\/uploads\/2023\/08\/\uc81c\ubaa9\uc744-\uc785\ub825\ud574\uc8fc\uc138\uc694_-001-3-1-150x150.jpg 150w\" sizes=\"(max-width: 533px) 100vw, 533px\" \/><\/figure><\/div>\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">\uc608\uc678(Exception)<\/h2>\r\n\r\n\r\n\r\n<p>Java\uc5d0\uc11c \uc608\uc678\ub294 \ud504\ub85c\uadf8\ub7a8 \uc2e4\ud589 \uc911\uc5d0 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ub7f0\ud0c0\uc784 \uc624\ub958 \ub610\ub294 \uc608\uc678 \uc870\uac74\uc744 \ucc98\ub9ac\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uba54\ucee4\ub2c8\uc998\uc785\ub2c8\ub2e4. \uba85\uc2dc\uc801\uc73c\ub85c \uc608\uc678\ub97c \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub294 throw \ubb38\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc608\uc678\ub97c \ub358\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc790\uc138\ud55c \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4435445268668222\" crossorigin=\"anonymous\"><\/script> <!-- [\ub514\uc2a4\ud50c\ub808\uc774 \uad11\uace0] \ubc18\uc751\ud615 \uc6cc\ub4dc\ud504\ub808\uc2a4 \ubcf8\ubb38 --> <ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-client=\"ca-pub-4435445268668222\" data-ad-slot=\"9091536397\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins> <script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/center>\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uc608\uc678 \ub4f1\uae09 \uc120\ud0dd<\/h3>\r\n\r\n\r\n\r\n<p>\uba3c\uc800 \ub358\uc9c8 \uc608\uc678 \uc720\ud615\uc744 \uacb0\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. Java\uc5d0\ub294 java.lang \ud328\ud0a4\uc9c0 \uc544\ub798\uc5d0 \uad6c\uc131\ub41c \uae30\ubcf8 \uc81c\uacf5 \uc608\uc678 \ud074\ub798\uc2a4\uc758 \ud48d\ubd80\ud55c \uacc4\uce35 \uad6c\uc870\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uba87 \uac00\uc9c0 \uc77c\ubc18\uc801\uc778 \uc608\uc678\ub294 NullPointerException, IllegalArgumentException \ubc0f RuntimeException\uc785\ub2c8\ub2e4. Exception \ub610\ub294 RuntimeException \ud074\ub798\uc2a4\ub97c \ud655\uc7a5\ud558\uc5ec \uace0\uc720\ud55c \uc0ac\uc6a9\uc790 \uc9c0\uc815 \uc608\uc678 \ud074\ub798\uc2a4\ub97c \ub9cc\ub4e4 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uc608\uc678\ub97c \ubc1c\uc0dd\uc2dc\ud0a4\ub294 \uba54\uc11c\ub4dc \uc0dd\uc131<\/h3>\r\n\r\n\r\n\r\n<p>\uc778\uc218\ub97c \uc0ac\uc6a9\ud558\ub294 \uba54\uc11c\ub4dc\uac00 \uc788\uace0 \uc778\uc218\uac00 \uc720\ud6a8\ud558\uc9c0 \uc54a\uc740 \uacbd\uc6b0 \uc608\uc678\ub97c throw\ud558\ub824\uace0 \ud55c\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc774\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc758 \uc608\uc785\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" style=\"font-size: .875rem; font-family: Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace; line-height: 1.25rem;\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\">\r\n<pre class=\"shiki nord\" style=\"background-color: #2e3440ff;\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81a1c1;\">public<\/span> <span style=\"color: #81a1c1;\">class<\/span> <span style=\"color: #8fbcbb;\">Example<\/span> <span style=\"color: #eceff4;\">{<\/span><\/span>\r\n<span class=\"line\">    <span style=\"color: #81a1c1;\">public<\/span> <span style=\"color: #81a1c1;\">static<\/span> <span style=\"color: #81a1c1;\">void<\/span> <span style=\"color: #88c0d0;\">validateNumber<\/span><span style=\"color: #eceff4;\">(<\/span><span style=\"color: #81a1c1;\">int<\/span> <span style=\"color: #d8dee9;\">number<\/span><span style=\"color: #eceff4;\">)<\/span> <span style=\"color: #81a1c1;\">throws<\/span> <span style=\"color: #8fbcbb;\">IllegalArgumentException<\/span>   <span style=\"color: #eceff4;\">{<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #81a1c1;\">if<\/span> <span style=\"color: #eceff4;\">(<\/span><span style=\"color: #d8dee9ff;\">number <\/span><span style=\"color: #81a1c1;\">&lt;=<\/span> <span style=\"color: #b48ead;\">0<\/span><span style=\"color: #eceff4;\">)<\/span> <span style=\"color: #eceff4;\">{<\/span><\/span>\r\n<span class=\"line\">            <span style=\"color: #81a1c1;\">throw<\/span> <span style=\"color: #81a1c1;\">new<\/span> <span style=\"color: #88c0d0;\">IllegalArgumentException<\/span><span style=\"color: #eceff4;\">(<\/span><span style=\"color: #eceff4;\">\"<\/span><span style=\"color: #a3be8c;\">Number must be positive.<\/span><span style=\"color: #eceff4;\">\"<\/span><span style=\"color: #eceff4;\">)<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #eceff4;\">}<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #616e88;\">\/\/ Continue with the method logic if the number is valid<\/span><\/span>\r\n<span class=\"line\">    <span style=\"color: #eceff4;\">}<\/span><\/span>\r\n    \r\n<span class=\"line\">    <span style=\"color: #81a1c1;\">public<\/span> <span style=\"color: #81a1c1;\">static<\/span> <span style=\"color: #81a1c1;\">void<\/span> <span style=\"color: #88c0d0;\">main<\/span><span style=\"color: #eceff4;\">(<\/span><span style=\"color: #8fbcbb;\">String<\/span><span style=\"color: #eceff4;\">[]<\/span> <span style=\"color: #d8dee9;\">args<\/span><span style=\"color: #eceff4;\">)<\/span> <span style=\"color: #eceff4;\">{<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #81a1c1;\">int<\/span> <span style=\"color: #d8dee9;\">inputValue<\/span> <span style=\"color: #81a1c1;\">=<\/span> <span style=\"color: #81a1c1;\">-<\/span><span style=\"color: #b48ead;\">5<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #81a1c1;\">try<\/span> <span style=\"color: #eceff4;\">{<\/span><\/span>\r\n<span class=\"line\">            <span style=\"color: #88c0d0;\">validateNumber<\/span><span style=\"color: #eceff4;\">(<\/span><span style=\"color: #d8dee9ff;\">inputValue<\/span><span style=\"color: #eceff4;\">)<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span>\r\n<span class=\"line\">            <span style=\"color: #d8dee9;\">System<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #d8dee9;\">out<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #88c0d0;\">println<\/span><span style=\"color: #eceff4;\">(<\/span><span style=\"color: #eceff4;\">\"<\/span><span style=\"color: #a3be8c;\">Input value is valid.<\/span><span style=\"color: #eceff4;\">\"<\/span><span style=\"color: #eceff4;\">)<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #eceff4;\">}<\/span> <span style=\"color: #81a1c1;\">catch<\/span> <span style=\"color: #eceff4;\">(<\/span><span style=\"color: #8fbcbb;\">IllegalArgumentException<\/span> <span style=\"color: #d8dee9;\">ex<\/span><span style=\"color: #eceff4;\">)<\/span> <span style=\"color: #eceff4;\">{<\/span><\/span>\r\n<span class=\"line\">            <span style=\"color: #d8dee9;\">System<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #d8dee9;\">out<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #88c0d0;\">println<\/span><span style=\"color: #eceff4;\">(<\/span><span style=\"color: #eceff4;\">\"<\/span><span style=\"color: #a3be8c;\">Exception caught: <\/span><span style=\"color: #eceff4;\">\"<\/span> <span style=\"color: #81a1c1;\">+<\/span> <span style=\"color: #d8dee9;\">ex<\/span><span style=\"color: #eceff4;\">.<\/span><span style=\"color: #88c0d0;\">getMessage<\/span><span style=\"color: #eceff4;\">())<\/span><span style=\"color: #81a1c1;\">;<\/span><\/span>\r\n<span class=\"line\">        <span style=\"color: #eceff4;\">}<\/span><\/span>\r\n<span class=\"line\">    <span style=\"color: #eceff4;\">}<\/span><\/span>\r\n<span class=\"line\"><span style=\"color: #eceff4;\">}<\/span><\/span><\/code><\/pre>\r\n<\/div>\r\n\r\n\r\n\r\n<p>\uc774 \uc608\uc5d0\uc11c validateNumber \uba54\uc11c\ub4dc\ub294 \uc815\uc218 \uc778\uc218\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc22b\uc790\uac00 \uc591\uc218\uac00 \uc544\ub2cc \uacbd\uc6b0 \uba54\uc11c\ub4dc\ub294 \uc0ac\uc6a9\uc790 \uc9c0\uc815 \uc624\ub958 \uba54\uc2dc\uc9c0\uc640 \ud568\uaed8 IllegalArgumentException\uc744 \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4. main \uba54\uc18c\ub4dc\ub294 \uc608\uc678\ub97c \ucc98\ub9ac\ud558\uae30 \uc704\ud574 try-catch \ube14\ub85d \ub0b4\uc5d0\uc11c validateNumber \uba54\uc18c\ub4dc\ub97c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uc608\uc678 \ubc1c\uc0dd<\/h3>\r\n\r\n\r\n\r\n<p>throw \ubb38\uc740 \uc608\uc678\ub97c \ub358\uc9c0\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc704\uc758 \uc608\uc5d0\uc11c throw new IllegalArgumentException(&#8220;Number must be positive.&#8221;); \ud589\uc740 \uc81c\uacf5\ub41c \uc624\ub958 \uba54\uc2dc\uc9c0\uc640 \ud568\uaed8 IllegalArgumentException \ud074\ub798\uc2a4\uc758 \uc778\uc2a4\ud134\uc2a4\ub97c \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\uc608\uc678 \ucc98\ub9ac<\/h3>\r\n\r\n\r\n\r\n<p>\uc608\uc678\uac00 \ubc1c\uc0dd\ud558\uba74 try-catch \ube14\ub85d\uc744 \uc0ac\uc6a9\ud558\uc5ec \ucc98\ub9ac\ud574\uc57c \ud569\ub2c8\ub2e4. \uc7a0\uc7ac\uc801\uc73c\ub85c \uc608\uc678\ub97c \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub294 \ucf54\ub4dc\ub294 try \ube14\ub85d \ub0b4\uc5d0 \ubc30\uce58\ub429\ub2c8\ub2e4. \uc608\uc678\uac00 \ubc1c\uc0dd\ud558\uba74 \ud574\ub2f9 catch \ube14\ub85d\uc774 \uc2e4\ud589\ub429\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<p>\uc774 \uc608\uc5d0\uc11c main \uba54\uc11c\ub4dc\uc5d0\ub294 validateNumber \uba54\uc11c\ub4dc\uac00 \ud638\ucd9c\ub418\ub294 try \ube14\ub85d\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. IllegalArgumentException\uc774 \ubc1c\uc0dd\ud558\uba74 \ud574\ub2f9 catch \ube14\ub85d\uc774 \uc608\uc678\ub97c \ud3ec\ucc29\ud558\uace0 \uc624\ub958 \uba54\uc2dc\uc9c0\ub97c \uc778\uc1c4\ud569\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\ub2e4\ub978 \uc720\ud615\uc758 \uc608\uc678 \ucc98\ub9ac<\/h3>\r\n\r\n\r\n\r\n<p>\ub2e4\ub978 \uc720\ud615\uc758 \uc608\uc678\ub97c \ub2e4\ub974\uac8c \ucc98\ub9ac\ud558\ub824\uba74 \uc5ec\ub7ec catch \ube14\ub85d\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\uc678\uc640 \uac19\uc740 \ub354 \ub113\uc740 \uc720\ud615\uc758 \uc608\uc678\ub97c \ud3ec\ucc29\ud558\uc5ec try \ube14\ub85d\uc758 \ucf54\ub4dc\uc5d0\uc11c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ubaa8\ub4e0 \uc608\uc678\ub97c \ud3ec\ucc29\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4435445268668222\" crossorigin=\"anonymous\"><\/script> <!-- [\ub514\uc2a4\ud50c\ub808\uc774 \uad11\uace0] \ubc18\uc751\ud615 \uc6cc\ub4dc\ud504\ub808\uc2a4 \ubcf8\ubb38 --> <ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-client=\"ca-pub-4435445268668222\" data-ad-slot=\"9091536397\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins> <script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/center>\r\n<p>&nbsp;<\/p>\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n<p>\uc774\uac83\uc774 Java\uc5d0\uc11c \uc608\uc678\ub97c \ub358\uc9c0\uace0 \uc7a1\ub294 \uae30\ubcf8 \ud504\ub85c\uc138\uc2a4\uc785\ub2c8\ub2e4. \uc608\uc678\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc740 \uc608\uc678\uc801\uc778 \uc0c1\ud669\uc744 \uc704\ud55c \uac83\uc774\uc5b4\uc57c \ud558\uba70 \uc624\ub958\ub97c \uc815\uc0c1\uc801\uc73c\ub85c \ucc98\ub9ac\ud558\ub3c4\ub85d \ucf54\ub4dc\ub97c \uc124\uacc4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp; \uc608\uc678(Exception) Java\uc5d0\uc11c \uc608\uc678\ub294 \ud504\ub85c\uadf8\ub7a8 \uc2e4\ud589 \uc911\uc5d0 \ubc1c\uc0dd\ud560 \uc218 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":118,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts\/117"}],"collection":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/comments?post=117"}],"version-history":[{"count":3,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts\/117\/revisions"}],"predecessor-version":[{"id":520,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/posts\/117\/revisions\/520"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/media\/118"}],"wp:attachment":[{"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/media?parent=117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/categories?post=117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mumooinfo.com\/wp-json\/wp\/v2\/tags?post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}