如何在 Java 中捕获文件未找到异常?
在使用 FileInputStream、FileOutputStream 和 RandomAccessFile 类时,我们需要将文件的路径传递给它们的构造函数。如果指定路径中不存在文件,则会引发 FileNotFoundException。
示例
public class Sample { public static void main(String args[]) throws Exception { File file = new File("myFile"); FileInputStream fis = new FileInputStream(file); System.out.println("Hello"); } }
输出
Exception in thread "main" java.io.FileNotFoundException: myFile (The system cannot find the file specified) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.open(Unknown Source) at java.io.FileInputStream.<init>(Unknown Source) at a5Exception_Handling.NullPointer.main(NullPointer.java:10)
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