Introduction to the method of determining whether a file exists in java (with code)

Use the file.exists() method of the File class to detect whether the file exists: (Recommended: java video tutorial)

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 above code The running output is (if the file java.txt exists in your C drive):

true

exists()

public boolean exists() tests whether the file or directory represented by this abstract path name 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.checkRead(java.lang.String) method denies write access to files or directories.

For more java knowledge, please pay attention to the java Basic Tutorial column.

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