How to read whether a file exists in java

The following example demonstrates using the file.exists() method of the File class to detect whether a file exists:

import java.io.File;

public class Main {
   public static void main(String[] args) {
      File file = new File("C:/java.txt");
      System.out.println(file.exists());
   }
}

The running result is (if it exists in your C drive File java.txt):

true

##exists():

public boolean exists() Tests the abstract pathname represented by this Whether the file or directory exists.

Returns: true if and only if the file or directory represented by this abstract path name exists; otherwise returns false;

Throws: SecurityExcepTIon if there is a security manager and its SecurityManager The .checkRead(java.lang.String) method denies write access to a file or directory.

For more java knowledge, please pay attention to the

java basic tutorial column.

The above is the detailed content of How to read whether a file exists in java. For more information, please follow other related articles on the PHP Chinese website!