{"id":493,"date":"2024-04-28T21:44:13","date_gmt":"2024-04-28T12:44:13","guid":{"rendered":"http:\/\/timetraveler.kr\/wordpress\/?p=493"},"modified":"2024-04-28T22:53:27","modified_gmt":"2024-04-28T13:53:27","slug":"%ec%98%a4%eb%9d%bc%ec%9d%bc%eb%a6%ac-%ed%95%a8%ec%88%98%ed%98%95-%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%98%eb%b0%8d-with-%ec%9e%90%eb%b0%94","status":"publish","type":"post","link":"http:\/\/timetraveler.kr\/wordpress\/?p=493","title":{"rendered":"[\uc624\ub77c\uc77c\ub9ac] \ud568\uc218\ud615 \ud504\ub85c\uadf8\ub798\ubc0d with \uc790\ubc14"},"content":{"rendered":"\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a 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data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"\uc624\ub77c\uc77c\ub9ac\ud568\uc218\ud615\uc790\ubc14\ud504\ub85c\uadf8\ub798\ubc0d\uc704\ub4dc\uc790\ubc14\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/timetraveler.kr\/wordpress\/wp-content\/uploads\/2024\/04\/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC%ED%95%A8%EC%88%98%ED%98%95%EC%9E%90%EB%B0%94%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D%EC%9C%84%EB%93%9C%EC%9E%90%EB%B0%94.jpeg?fit=233%2C300\" data-large-file=\"https:\/\/i0.wp.com\/timetraveler.kr\/wordpress\/wp-content\/uploads\/2024\/04\/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC%ED%95%A8%EC%88%98%ED%98%95%EC%9E%90%EB%B0%94%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D%EC%9C%84%EB%93%9C%EC%9E%90%EB%B0%94.jpeg?fit=400%2C514\" data-id=\"494\" src=\"https:\/\/i0.wp.com\/timetraveler.kr\/wordpress\/wp-content\/uploads\/2024\/04\/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC%ED%95%A8%EC%88%98%ED%98%95%EC%9E%90%EB%B0%94%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D%EC%9C%84%EB%93%9C%EC%9E%90%EB%B0%94.jpeg?resize=400%2C514\" alt=\"\" class=\"wp-image-494\" srcset=\"https:\/\/i0.wp.com\/timetraveler.kr\/wordpress\/wp-content\/uploads\/2024\/04\/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC%ED%95%A8%EC%88%98%ED%98%95%EC%9E%90%EB%B0%94%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D%EC%9C%84%EB%93%9C%EC%9E%90%EB%B0%94.jpeg?w=400 400w, https:\/\/i0.wp.com\/timetraveler.kr\/wordpress\/wp-content\/uploads\/2024\/04\/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC%ED%95%A8%EC%88%98%ED%98%95%EC%9E%90%EB%B0%94%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D%EC%9C%84%EB%93%9C%EC%9E%90%EB%B0%94.jpeg?resize=233%2C300 233w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p><strong>&#8220;\ud55c\ube5b\ubbf8\ub514\uc5b4 &lt;\ub098\ub294 \ub9ac\ubdf0\uc5b4\ub2e4> \ud65c\ub3d9\uc744 \uc704\ud574\uc11c \ucc45\uc744 \uc81c\uacf5\ubc1b\uc544 \uc791\uc131\ub41c \uc11c\ud3c9\uc785\ub2c8\ub2e4.&#8221;<\/strong><\/p>\n\n\n\n<p> \uc790\ubc14\ub97c \ucc98\uc74c \uc811\ud55c \uac8c \ub300\ud559 2\ud559\ub144 \ub54c\uc600\ub358 \uac83 \uac19\ub2e4. \uc544\uc8fc \ud56b\ud55c \uc5b8\uc5b4\uc600\uace0, C\/C++ \uc5b8\uc5b4\uc758 \ub2e8\uc810\uc744 \uadf9\ubcf5\ud55c \uc5b8\uc5b4\ub77c\uba74\uc11c \ud64d\ubcf4\ub3c4 \ub9ce\uc774 \ud588\uc5c8\ub2e4. \ucef4\ud30c\uc77c\ub7ec \uc131\ub2a5\uc744 \uac1c\uc120\ud558\uae30 \uc704\ud55c \ub17c\ubb38\uc774 \uc3df\uc544\uc84c\uace0, \ud55c \ubc88\uc5d0 \ucc98\ub9ac\ud560 \uc778\uc790 \uc218\ub97c \ub298\ub9ac\uba74\uc11c \uc131\ub2a5\uc774 \ub300\ud3ed \uac1c\uc120\ub410\ub2e4\ub294 \uc598\uae30\ub3c4 \ub4e4\ub824\uc654\ub2e4.<\/p>\n\n\n\n<p> \uc2e4\uc81c \ucde8\uc9c1\uc744 \ud574\uc11c \uc6f9 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ud558\uac8c \ub418\uc5c8\uc744 \ub54c\ub3c4 \ud56b\ud588\ub358 Servlet\/JSP \uae30\uc220\uc744 \ub3c4\uc785\ud574\uc11c \ub9cc\ub4e4\uc5b4\ub0b4\ub290\ub77c \ubc14\ube74\ub2e4. \uadf8\ub9cc\ud07c \uc790\ubc14\ub294 \uc0b0\uc5c5\uacc4\uc5d0 \ud070 \ud30c\uc7a5\uc744 \uc77c\uc73c\ucf30\ub2e4.<\/p>\n\n\n\n<p> \uadf8\ub7f0\ub370 \uc5b4\ub290 \uc21c\uac04\ubd80\ud130 \uc790\ubc14\uac00 \uc790\ubc14\uc2a4\ub7fd\uc9c0 \uc54a\uac8c \ub418\uba74\uc11c, \uc218\ub9ce\uc740 \uc0b0\uc5c5\uacc4\uc758 \uc694\uad6c\uc0ac\ud56d\uc774 \ube57\ubc1c\uce58\uba74\uc11c \uc790\ubc14\uac00 \ubcc0\ud588\ub2e4. \uadf8 \ubcc0\ud654\ub97c \ub530\ub77c\uc7a1\ub294 \uac8c \uc27d\uc9c0 \uc54a\uc544\uc84c\ub2e4. \uc2ec\uc9c0\uc5b4 \uc120\uc5d0\uc11c \uc624\ub77c\ud074\ub85c \uc8fc\ub3c4\uad8c\uc774 \ubc14\ub00c\uae30\ub3c4 \ud588\ub2e4.<\/p>\n\n\n\n<p> \uc7a0\uae50 \ud55c \ub208\uc744 \ud314\uace0 \ub3cc\uc544\uc640\ubcf4\ub2c8 \ub0b4\uac00 \uc54c\ub358 \uc790\ubc14\ub294 \uc644\uc804 \uad6c\ub2e5\ub2e4\ub9ac\ucc98\ub7fc \ubcc0\ud574 \uc788\uc5c8\ub2e4. JVM\uc5d0\uc11c \ub3cc\uc544\uac00\ub294 \ub2e4\ub978 \uc5b8\uc5b4\ub97c \uc775\ud788\uace0 \ub098\ub2c8, \uc790\ubc14 \ucf54\ub529\uc774 \ub108\ubb34 \ud798\ub4e4\uc5b4\uc84c\ub2e4. \uc2a4\uce7c\ub77c\ub294 \uac1d\uc9c0\uc9c0\ud5a5 \uc5b8\uc5b4\uc640 \ud568\uc218\ud615 \uc5b8\uc5b4\uc758 \uc7a5\uc810\uc744 \ud63c\ud569\ud55c \uc5b8\uc5b4\uc600\uace0, \ub7ec\ub2dd \ucee4\ube0c\uac00 \uac70\uc14c\uc9c0\ub9cc, \ud55c \ubc88 \uc775\ud788\uace0 \ub098\ub2c8 \uadf8 \uac04\uacb0\ud568\uacfc \ub300\ud3ed \uc904\uc5b4\ub4e0 \ucf54\ub4dc\ub7c9\uc5d0 \uc5f4\uad11\ud588\ub2e4. \ub2e4\ub9cc, val\uacfc var\uc758 \ucc28\uc774\uc810\uacfc, \uacfc\uac70 \uc790\ubc14\uc2a4\ub7fd\uac8c \ucf54\ub529\ud558\ub358 \ubc84\ub987 \ub54c\ubb38\uc5d0 \uc801\uc751\uc774 \uc5b4\ub824\uc6e0\ub2e4. \ud558\uc9c0\ub9cc \uadf8 \uc9c0\uc810\uc744 \ud1b5\uacfc\ud558\uace0 \ub098\ub2c8 val\ub9cc \uc4f0\ub294 \ubc29\uc2dd\uc774 \ub108\ubb34 \ud3b8\ud558\ub2e4. \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud574\ub3c4 \uac12\uc744 \uc778\uc2dd\ud558\uc9c0 \ubabb\ud55c \uc9c0\uc810\uc5d0\uc11c \ubc14\uafb8\ub294 \uc0c1\ud669\uc774 \uc5c6\uc5b4\uc9c0\ub2c8 \ub514\ubc84\uae45 \ud558\uae30\ub3c4 \uc218\uc6d4\ud574\uc84c\ub2e4.<\/p>\n\n\n\n<p> \uadf8\ub7f0\ub370 \ud68c\uc0ac\uc5d0\uc11c \uc2a4\uce7c\ub77c\ub97c \ubc84\ub9ac\uace0 \uc790\ubc14\ub85c \uac00\uac8c \ub410\ub2e4. \uadf8\ub098\ub9c8 \ucd5c\uc2e0 \ud2b8\ub80c\ub4dc\ub85c \ubb34\uc7a5\ud55c \ucf54\ud2c0\ub9b0\uc73c\ub85c \uac00\uace0\uc790 \ud588\uc9c0\ub9cc, \uc790\ubc14\ub97c \uc775\ud78c \uac1c\ubc1c\uc790\ub4e4\uc758 \uc800\ud56d\uc774 \uac70\uc14c\ub2e4. \uacb0\uad6d \ud604\uc2e4\uc801\uc778 \uc774\uc720 \ub54c\ubb38\uc5d0 \ucf54\ud2c0\ub9b0\uc73c\ub85c \uac00\uc9c0 \ubabb\ud558\uace0 \uc790\ubc14\ub85c \ud68c\uadc0\ud588\ub2e4.<\/p>\n\n\n\n<p> \uac00\ub9cc \uc0dd\uac01\ud574\ubcf4\uba74, \uc790\ubc14\uac00 \uacfc\uc5f0 \ubb38\uc81c\uc77c\uae4c? \uc790\ubc14\uac00 \ubb38\uc81c\uac00 \uc544\ub2c8\ub77c, \uc790\ubc14\uc2dd\uc73c\ub85c \ucf54\ub4dc\ub97c \uc791\uc131\ud558\ub294 \uac8c \ubd80\ub2f4\uc2a4\ub7fd\ub2e4. \ubb34\uc5c7 \ub54c\ubb38\uc5d0? \ub9c9\ub300\ud55c \ucf54\ub4dc\ub7c9 \ub54c\ubb38\uc774\ub2e4. \ucd5c\uc2e0 \ud2b8\ub80c\ub4dc\uac00 \ubc18\uc601\ub41c \uc5b8\uc5b4\ub4e4\uacfc \uc790\ubc14\ub85c \uac19\uc740 \ub85c\uc9c1\uc744 \uc791\uc131\ud574\ubcf4\uba74, \uadf8 \uc591\uc774 \ud604\uaca9\ud788 \ucc28\uc774\uac00 \ub09c\ub2e4. \uadf8\ub798\uc11c \ucf54\ub4dc\ub97c \uc77d\ub294 \uac8c \ubd80\ub2f4\uc2a4\ub7fd\uae30\ub3c4 \ud558\uace0 \ub85c\uc9c1\uc774 \uba3c\uc800 \ubcf4\uc774\ub294 \uac8c \uc544\ub2c8\ub77c, \ub85c\uc9c1\uc744 \uc9dc\uae30 \uc704\ud574 \ud544\uc694\ud55c \ucf54\ub4dc\ub4e4\uc774 \ubc29\ud574\ud588\ub2e4.<\/p>\n\n\n\n<p> \ubb54\uac00 \ud574\uacb0\ucc45\uc774 \ud544\uc694\ud588\ub2e4. \uadf8\uac83\uc774 \uc790\ubc14 8 \uc774\ud6c4\ub85c \uc804\uaca9 \ub3c4\uc785\ub41c \ud568\uc218\ud615 \ud504\ub85c\uadf8\ub798\ubc0d \uc9c0\uc6d0\uc774\uc5c8\ub2e4. \ucc98\uc74c\uc5d0\ub294 \uadf8\ub7f0 \ucf54\ub4dc\ub4e4\ub3c4 \ub108\ubb34 \uad70\ub354\ub354\uae30\uac00 \ub9ce\ub2e4\uace0 \uc0dd\uac01\ud588\ub294\ub370, \uc774 \ucc45\uc744 \uc77d\uc73c\uba74\uc11c \uc774\uc720\ub97c \uc54c\uac8c \ub410\ub2e4. \ubc14\ub85c \ud558\uc704 \ud638\ud658\uc131 \ub54c\ubb38\uc774\uc5c8\ub2e4\ub294 \uac83. \uc0c8\ub85c \ub3c4\uc785\ud558\ub294 \uac70\ub77c\uba74 \uacfc\uac10\ud558\uac8c, \ucd5c\uc2e0 \ud2b8\ub80c\ub4dc\ucc98\ub7fc, \uac04\uacb0\ud558\uac8c \ub9cc\ub4e4\uc5b4\ub3c4 \ub410\uc744 \ud150\ub370, \ud558\uc704 \ud638\ud658 \uac00\ub2a5\ud558\ub3c4\ub85d \ub9cc\ub4e4\ub2e4\ubcf4\ub2c8 \uc5b4\uca54 \uc218 \uc5c6\uc774 \ucde8\ud574\uc57c \ud588\ub358 \ubaa8\uc591\uc0c8\ub2e4.<\/p>\n\n\n\n<p> \ub3c4\uc785\uc740 \ud588\ub294\ub370, \uc774\uac78 \ub0b4\uac00 \uc81c\ub300\ub85c \uc54c\uace0 \uc4f0\ub294 \uac8c \ub9de\uc744\uae4c? \ub193\uce58\uace0 \uc788\ub294 \uac74 \uc5bc\ub9c8\ub098 \ub420\uae4c? \uc0ac\uc2e4 \uc774\uac78 \ubc18\uc601\ud558\uae30 \uc704\ud574 \uc0c1\uc6a9 IDE\uac00 \uc81c\uc548\ud558\ub294 \ub3c4\uad6c\ub4e4\uc744 \ud65c\uc6a9\ud574\uc11c \uc870\uae08\uc529 \ubc18\uc601\ud558\uace4 \uc788\uc5c8\ub2e4. \ud558\uc9c0\ub9cc \uc774\uac8c \ub9de\ub294 \uac78\uae4c? \uadf8\ub7f0 \uace0\ubbfc\uc73c\ub85c \ubd80\ub2f4\uac10\uc774 \ub0a0\ub85c \ucee4\uc9c0\ub294 \uac00\uc6b4\ub370, \uc774 \ucc45\uc744 \ub9cc\ub098\uac8c \ub410\ub2e4.<\/p>\n\n\n\n<p> \uc815\ub9d0 \ub0b4\uac00 \ud544\uc694\ub85c \ud588\ub358 \ucc45\uc774\ub2e4. \uadf8\ub7f0\ub370 \ub2e8\uc21c\ud788 \uac1c\ub150\ub9cc \uc124\uba85\ud558\ub294 \ucc45\uc740 \uc544\ub2c8\uc5c8\ub2e4. PART 01 \ud568\uc218\ud615 \uae30\ucd08\ub97c \uc77d\uc744 \ub54c\uae4c\uc9c0\ub294 \ub9e4\uc6b0 \uace0\ud1b5\uc2a4\ub7ec\uc6e0\ub2e4. \uc775\uc219\ud558\uc9c0 \uc54a\uc740 \uc804\ubb38\uc6a9\uc5b4\uac00 \ub9ce\uc774 \ub098\uc654\ub2e4. \uae30\uc220 \uc6a9\uc5b4? \uc544\ub2c8\ub2e4, \uc218\ud559\uc801 \uac1c\ub150\uc744 \uc774\ud574\ud574\uc57c \ud558\ub294 \uc6a9\uc5b4\ub4e4\uc774\ub2e4. \ubc88\uc5ed\ud558\ub294 \uc0ac\ub78c \uc785\uc7a5\uc5d0\uc11c\ub3c4 \ud798\ub4e4\uc5c8\uaca0\ub2e4 \uc2f6\uc5c8\ub2e4. \uc9c0\uc9c0\ubd80\uc9c4\ud558\uac8c \uc77d\ub2e4\uac00, \uc2ac\uc2ac \uc18d\ub3c4\uac00 \ubd99\uae30 \uc2dc\uc791\ud55c \uc9c0\uc810\uc774 record \uc124\uba85\ud560 \ub54c\uc600\ub2e4. \uadf8\ub098\ub9c8 \ucd5c\uc2e0 \uc5b8\uc5b4\uc5d0\uc11c \uc2e4\ud5d8 \uc911\uc778 \uae30\ub2a5\uc744 \uc870\uae08 \uc368 \ubd24\ub2e4. \uadf8\ub7ec\ub2e4\ubcf4\ub2c8 \uc124\uba85\uc744 \uc774\ud574\ud558\ub294 \uac8c \ub9ce\uc740 \ub3c4\uc6c0\uc774 \ub410\ub2e4.<\/p>\n\n\n\n<p> \uc790\ubc14 \ub78c\ub2e4\uc5d0 \ub300\ud574\uc120 \ud53c\uc0c1\uc801\uc73c\ub85c\ub9cc \uc4f0\uace0 \uc788\uc5c8\ub294\ub370, \ud655\uc2e4\ud558\uac8c \uc54c\uac8c \ub418\uc5c8\ub358 \uac74 \ud070 \uc218\ud655\uc774\ub2e4. \ubb3c\ub860 \uc815\ub9d0\ub85c \uc798 \uc774\ud574\ud588\uace0, \uc798 \ud65c\uc6a9\ud558\ub824\uba74 \uae30\uc874 \ucf54\ub4dc\ub97c \ubcc0\uacbd\ud558\uace0 \ube44\uad50\ud574\uac00\uba74\uc11c \ud655\uace0\ud788 \ud558\ub294 \uc218\ubc16\uc5d0 \uc5c6\uaca0\uc9c0\ub9cc, \uadf8\ub0e5 \ubaa8\ub974\ub294 \ucc44\ub85c \ub300\ucda9 \uc4f0\ub294 \uac83\uacfc\ub294 \ud655\uc2e4\ud788 \ub2e4\ub974\ub2e4. \ube68\ub9ac \uc801\uc6a9\ud574\ubcf4\uace0 \uc2f6\uc744 \uc9c0\uacbd\uc774\ub2e4.<\/p>\n\n\n\n<p> \ud568\uc218\ud615 \uc778\ud130\ud398\uc774\uc2a4 Function, Consumer, Supplier, Predicate \uc774\uac83\ub4e4\uc740 \uc54c\uac8c \ubaa8\ub974\uac8c \uc4f0\uace0\ub294 \uc788\uc5c8\ub294\ub370, \uc774\uc81c\uc57c \ubb54\uc9c0 \uc54c \uac83 \uac19\ub2e4. \uc5ed\uc2dc \uc5f0\uc2b5\uc744 \ud1b5\ud574 \ud655\uc2e4\ud558\uac8c \uc775\ud600\ub46c\uc57c\uaca0\ub2e4.<\/p>\n\n\n\n<p> \uc2a4\ud2b8\ub9bc \uc5ed\uc2dc \ub9c8\ucc2c\uac00\uc9c0\ub2e4. \uc2a4\uce7c\ub77c\uc5d0\uc11c \uc4f0\ub358 \ud615\ud0dc \ube44\uc2b7\ud558\uac8c \uc4f0\uace0 \uc2f6\uc5b4\uc11c \uc4f0\uae30 \uc2dc\uc791\ud588\ub358 \uac74\ub370, \ucf54\ub4dc\ub97c \uc815\ub9ac\ud558\uae30 \uc704\ud574\uc11c\ub77c\ub3c4 \ub354 \ub9ce\uc774 \uc4f0\ub824\uace0 \ud55c\ub2e4. \ub0b4\uac00 \uad00\ub9ac\ud558\ub294 \uc2dc\uc2a4\ud15c\uc740 \uc131\ub2a5\ubcf4\ub2e4\ub294 \uba85\ud655\ud55c \ub85c\uc9c1\uacfc \uc758\ub3c4, \uc720\uc5f0\ud55c \ucd94\uac00\ub098 \ubcc0\uacbd\uc774 \ub354 \uc911\uc694\ud55c \uc2dc\uc2a4\ud15c\uc774\ub2e4. \uc131\ub2a5\uc774 \uc911\uc694\ud558\uc9c0 \uc54a\ub2e4\uae30\ubcf4\ub2e4\ub294, \uc9c0\uc7a5\uc774 \uc5c6\uc744 \uc815\ub3c4\uba74 \ub418\uace0, \uc624\ud788\ub824 \ub2e4\uc591\ud55c \uc694\uad6c\uc0ac\ud56d\uc744 \ube60\ub978 \uc2dc\uac04 \uc548\uc5d0, \uc548\uc815\uc801\uc73c\ub85c \uc81c\uacf5\ud574\uc8fc\ub294 \uac8c \ub354 \uc911\uc694\ud558\ub2e4. \uac8c\ub2e4\uac00 \uad8c\ud55c\ub3c4 \uba85\ud655\ud574\uc57c \ud558\uace0, \ubcc0\ud654\uc5d0 \ub300\ud55c \uae30\ub85d\ub3c4 \ubd84\uba85\ud558\uac8c \ud574\uc918\uc57c \ud558\ub294 \uac70\ub2e4\ubcf4\ub2c8 \ub354\uc6b1 \uba85\ud655\ud558\uac8c \ud30c\uc545\ud574\uc57c \ud55c\ub2e4. \uadf8\ub7f0 \uba74\uc5d0\uc11c \ud568\uc218\ud615 \ub3c4\uc785\uc740 \ubd84\uba85\ud788 \ud544\uc694\ud558\ub2e4.<\/p>\n\n\n\n<p> \ub9ac\ud329\ud1a0\ub9c1\uc744 \ud558\ub824\uace0 \ud558\ub294 \ucf54\ub4dc\ub294 \uc804\ud615\uc801\uc778 \uacfc\uac70 \uc790\ubc14 \uc2a4\ud0c0\uc77c \ucf54\ub4dc\ub4e4\uc774\ub2e4. \uc194\uc9c1\ud788 \ub85c\uc9c1\uc774 \uc548 \ubcf4\uc778\ub2e4. \ub108\ubb34\ub098 \ub9ce\uc740 \uc608\uc678 \ucc98\ub9ac\ub4e4\uc774 \uc874\uc7ac\ud55c\ub2e4. \uc880\ub354 \uac1d\uccb4\uc9c0\ud5a5\uc801\uc73c\ub85c \uad6c\uc870 \uac1c\uc120\uc744 \ud558\ub4e0\uac00, \ud55c \ub208\uc5d0 \ubcf4\uc774\ub3c4\ub85d \ud568\uc218\ud615\uc73c\ub85c \uac1c\uc120\ud558\ub358\uac00 \ud574\uc57c \ud55c\ub2e4. \uadf8\ub7f0 \uba74\uc5d0\uc11c\ub294 \uac1c\uc778\uc801\uc73c\ub85c \ud568\uc218\ud615\uc774 \ub354 \ub098\uc740 \uac83 \uac19\ub2e4. \uac1d\uccb4\uc9c0\ud5a5\uc740 \uc88b\uae34 \ud55c\ub370, \ubb54\uac00 \uba85\ud655\ud558\uac8c \ud750\ub984\uc744 \ud30c\uc545\ud558\uae30\uc5d0\ub294 \ubb38\uc81c\uac00 \ub9ce\uc740 \uac83 \uac19\ub2e4. \ubb3c\ub860 \uc124\uacc4 \ubbf8\uc2a4\uc600\uaca0\uc9c0\ub9cc.<\/p>\n\n\n\n<p> \uc778\uc0c1\uae4a\uc740 \ubd80\ubd84\uc740 \uc2a4\uce7c\ub77c\uc758 try\/success\/failure\ub97c \ud568\uc218\ud615\uc73c\ub85c \uad6c\ud604\ud55c \ubd80\ubd84\uc774\uc5c8\ub2e4. \uc194\uc9c1\ud788 \uc65c \ub098\ub294 \uc774\ub7f0 \ubd80\ubd84\uc744 \uc0dd\uac01\ud558\uc9c0 \uc54a\uc558\uc744\uae4c \uc2f6\uc5c8\uace0, \uc2a4\uce7c\ub77c\uac00 \ud574\ub2f9 \uae30\ub2a5\uc744 JVM\uc5d0\uc11c \ub3cc\ub9ac\uae30 \uc704\ud574 \ube44\uc2b7\ud55c \ud615\ud0dc\ub85c \ub0b4\ubd80 \uad6c\ud604\ud55c \uac8c \uc544\ub2d0\uae4c \ud558\ub294 \uc0dd\uac01\ub9c8\uc800 \ub4e4\uc5c8\ub2e4. \ubb3c\ub860 \uc774\uac8c \uc9c4\uc2e4\uc774\ub77c\uace0 \uc0dd\uac01\uc9c4 \uc54a\ub294\ub2e4. \uc774 \ubd80\ubd84\uc740 \uc2e4\uc81c \uad6c\ud604\ub41c \ubd80\ubd84\uc744 \ud655\uc778\ud574\ubd10\uc57c \uc54c \uc218 \uc788\ub294 \ub0b4\uc6a9\uc774\uaca0\uc9c0\ub9cc.<\/p>\n\n\n\n<p> \uc81c\uc77c \ub9ce\uc774 \uc4f0\uace0\uc790 \ud558\ub294 \uac74 \uc5ed\uc2dc\ub098 Optional\uc774\ub2e4. \ub108\ubb34 \uba85\ud655\ud574\uc11c \ubb50\ub77c \ub9d0\ud558\uae30\uac00 \uc5b4\ub835\ub2e4. \uc774\uac78 \uc4f0\uace0 \uc548 \uc4f0\uace0\ub294 \ud655\uc2e4\ud788 \ucc28\uc774\uac00 \ub098\ub294 \uac8c, \uc815\uc2e0\uc774 \uc544\ucc14\ud560 \uc815\ub3c4\ub85c if \uc808\uc744 \ub0a8\ubc1c\ud560 \uc218\ubc16\uc5d0 \uc5c6\ub294 \uc0c1\ud669\uc744 \ubc18\uc804\uc2dc\ud0ac \uc218 \uc788\ub294 \ud0a4 \ud53c\ucc98 \uc911 \ud558\ub098\ub2e4. \uc2a4\ud2b8\ub9bc\uacfc Optional, \uc774 \ub458\ub9cc \uc801\uc808\ud788 \uc815\ub9ac\ud574\uc918\ub3c4 \uc9c0\uae08\ubcf4\ub2e4\ub294 \ud655\uc2e4\ud788 \ub0ab\ub2e4.<\/p>\n\n\n\n<p> \ub290\uae0b\ud55c \uacc4\uc0b0\ubc95 (\uc9c0\uc5f0 \ud3c9\uac00), \uc774\uac78 \uc81c\ub300\ub85c \ubab0\ub790\ub358 \uac74\ub370, \uc124\uba85\uc744 \uc544\uc8fc \uc798 \ud574\uc900\ub2e4. \uac8c\ub2e4\uac00 \uc800\uc790\uac00 \ub2e4\ub144 \uac04 \uc77c\ud558\uba74\uc11c \uc54c\uac8c \ub41c \uc8fc\uc625\uac19\uc740 \uac00\uc774\ub4dc\ub098 \ud301, \uacbd\ud5d8 \uacf5\uc720\ub294 \ubb34\ucc99\uc774\ub098 \uac12\uc9c0\ub2e4. \uae30\uc220 \uc124\uba85\ud558\ub294 \uac83\ubcf4\ub2e4, \uc774\ub7f0 \ub0b4\uc6a9\ub4e4\uc774 \uc624\ud788\ub824 \uc800\uc790\uac00 \ud558\uace0 \uc2f6\uc5c8\ub358 \ub0b4\uc6a9\uc774 \uc544\ub2cc\uac00 \uc2f6\ub2e4.<\/p>\n\n\n\n<p> \uc7ac\uadc0 \ubd80\ubd84\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc544\ub294 \uc815\ub3c4\ub85c\ub9cc \uc54c\uace0 \uc788\uc5c8\ub294\ub370, \uc0c8\ub85c\uc6b4 \uad00\uc810\uc744 \uc54c\uac8c \ud574\uc92c\ub2e4. \ub208\uc774 \ubc88\uca4d\ud588\ub2e4. <\/p>\n\n\n\n<p> \ud568\uc218\ud615 \ub514\uc790\uc778 \ud328\ud134\uacfc \uc790\ubc14\ub97c \uc704\ud55c \ud568\uc218\ud615 \uc811\uadfc \ubc29\uc2dd\uc740 \ud55c \ubc88\ub9cc \uc77d\uc5b4\uc11c\ub294 \uc548 \ub420 \ub0b4\uc6a9\uc774\ub2e4. \uc774 \ub0b4\uc6a9\uc740 \uc5ec\ub7ec \ubc88 \uc77d\uc5b4\uc11c \uc804\ub2ec\ud558\uace0\uc790 \ud558\ub294 \ub0b4\uc6a9\uc744 \uccb4\ud654\ud574\uc57c \ud560 \uac83\ub4e4\uc774\ub2e4. \ub2e8\uc21c\ud55c \ub0b4\uc6a9\ub3c4 \uc544\ub2c8\uace0 \uc26c\uc6b4 \ub0b4\uc6a9\ub3c4 \uc544\ub2c8\ub2e4. \uc774\uac83\ub4e4\uc744 \ub0b4\uac83\uc73c\ub85c \ub9cc\ub4e4 \uc218\ub9cc \uc788\uc5b4\ub3c4 \ud55c \ubc88\uc758 \ube45 \uc810\ud504\ub97c \ud560 \uc218 \uc788\ub2e4\ub294 \uc0dd\uac01\uc774 \ub4e4\uc5c8\ub2e4.<\/p>\n\n\n\n<p> \uc800\uc790\ub294 \ub3c5\ud559\uc73c\ub85c \uac1c\ubc1c\uc790\uac00 \ub418\uc5c8\ub2e4\uace0 \ud588\ub2e4. \ubcf8\uc778\uc740 \uc804\uc0b0\ud559\uc744 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