java自动关闭教程



import java.io.BufferedReader; import java.io.FileOutputStream; import java.io.FileReader; import java.io.IOException; import java.io.PrintStream; public class AutoCloseTest { public AutoCloseTest() { } public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new FileReader("t.txt")); Throwable var2 = null; try { PrintStream pr = new PrintStream(new FileOutputStream("a.txt")); Throwable var4 = null; try { System.out.println(br.readLine()); pr.println("我是要成为海贼王的男人"); } catch (Throwable var27) { var4 = var27; throw var27; } finally { if (pr != null) { if (var4 != null) { try { pr.close(); } catch (Throwable var26) { var4.addSuppressed(var26); } } else { pr.close(); } } } } catch (Throwable var29) { var2 = var29; throw var29; } finally { if (br != null) { if (var2 != null) { try { br.close(); } catch (Throwable var25) { var2.addSuppressed(var25); } } else { br.close(); } } } } }

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