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Java BufferedWriter.close()方法示例
BufferedWriter的Java BufferedWriter.close()方法的语法如下。
public void close() throws IOException
示例
在下面的代码中展示了如何使用BufferedWriter.close()方法。
import java.io.BufferedWriter; import java.io.IOException; import java.io.StringWriter; public class Main { public static void main(String[] args) throws IOException { StringWriter sw = new StringWriter(); // From: Ｗｗ ｗ .y ｉＩ Ｂ AＩ .ｃ ＯM BufferedWriter bw = new BufferedWriter(sw); bw.append(“yiibai.com”); bw.close(); System.out.println(sw.getBuffer()); // appending after closing will throw error bw.append(“2”); System.out.println(sw.getBuffer()); } }
上面的代码生成以下结果。
Exception in thread “main” yiibai.com java.io.IOException: Stream closed at java.io.BufferedWriter.ensureOpen(BufferedWriter.java:116) at java.io.BufferedWriter.write(BufferedWriter.java:221) at java.io.Writer.write(Writer.java:157) at java.io.Writer.append(Writer.java:227) at Main.main(Main.java:19)
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