{"componentChunkName":"component---src-templates-post-template-jsx","path":"/history/posts/2020-10-04--003--09","result":{"data":{"site":{"siteMetadata":{"title":"Blog by Eunyoung","subtitle":"작업 기록 블로그","copyright":"© All rights reserved.","author":{"name":"EunYoung","twitter":"#"},"disqusShortname":"","url":"https://ssongey.github.io"}},"markdownRemark":{"id":"1c925f8b-517c-51d3-87ed-e731c6f233f2","html":"

아이템9) try-finally 보다는 try-with-resources를 사용하라

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꼭 회수해야 하는 자원을 다룰 때는 try-finally 말고 try-with-resources 를 사용하면 정확하고 쉽게 회수할 수 있다.

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try-finally

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void copy(String src, String dst) throws IOException {\n  InputStream in = null;\n  OutputStream out = null;\n  try {\n    in = new FileInputStream(src);\n    out = new FileOutputStream(dst);\n\n    byte[] buf = new byte[BUFFER_SIZE];\n    int n;\n    while((n = in.read(buf)) >= 0)\n      out.write(buf, 0, n);\n\n  } finally {\n    if(in != null) in.close();\n    if(out != null) out.close();\n  }\n}
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try-with-resources

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void copy(String src, String dst) throws IOException {\n  try (InputStream in = new FileInputStream(src); OutputStream out = new FileOutputStream(dst)) {\n    byte[] buf = new byte[BUFFER_SIZE];\n    int n;\n    while((n = in.read(buf)) >= 0)\n      out.write(buf, 0, n);\n  }\n}
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","fields":{"tagSlugs":["/tags/책리뷰/","/tags/이펙티브자바/"],"slug":"/history/posts/2020-10-04--003--09"},"frontmatter":{"title":"[책리뷰/Effective Java] 객체 생성과 파괴","tags":["책리뷰","이펙티브자바"],"date":"2020-10-04","description":"아이템9) try-finally 보다는 try-with-resources를 사용하라"}}},"pageContext":{"slug":"/history/posts/2020-10-04--003--09"}},"staticQueryHashes":[]}