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Showing content from https://www.tutorialspoint.com/java/io/file_getabsolutepath.htm below:

Java - File getAbsolutePath() method

The Java File getAbsolutePath() method returns the absolute pathname string of this abstract pathname.

Following is the declaration for java.io.File.getAbsolutePath() method −

public String getAbsolutePath()

NA

The method returns the absolute pathname denoting the same file or directory.

• SecurityException − If a system property value can not be accessed.

The following example shows the usage of Java File getAbsolutePath() method. We've created two File references. Then we're creating a File Object using test.txt which is not present in the current directory. Then we've created the file using createNewFile() method. Now using getAbsoluteFile() method, we're getting the file and getting the absolute path of file using getAbsolutePath() method and then we're checking if file exists using exists() method.

package com.tutorialspoint;

import java.io.File;

public class FileDemo {
   public static void main(String[] args) {      
      File f = null;
      File f1 = null;
      String path = "";
      boolean bool = false;
      
      try {
         // create new files
         f = new File("test.txt");
         
         // create new file in the system
         f.createNewFile();
         
         // create new file object from the absolute path
         f1 = f.getAbsoluteFile();
         
         // returns true if the file exists
         bool = f1.exists();
         
         // returns absolute pathname
         path = f1.getAbsolutePath();
         
         // if file exists
         if(bool) {
         
            // prints the file
            System.out.print(path+" Exists? "+ bool);
         }
         
      } catch(Exception e) {
         // if any error occurs
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result−

F:\Workspace\Tester\test.txt Exists? true

The following example shows the usage of Java File getAbsolutePath() method. We've created a File reference. Then we're creating a File Object using F:/test.txt which is present in the provided directory. Now using getAbsoluteFile() method, we're getting the file and printing its path after getting the absolute path of file using getAbsolutePath() method.

package com.tutorialspoint;

import java.io.File;

public class FileDemo {
   public static void main(String[] args) {      
      File f = null;
      
      try {
         // create new files
         f = new File("F:/test.txt");         
    
         // get the file
         File f1 = f.getAbsoluteFile();
         
         // prints the file path
         System.out.println("File: "+f1.getAbsolutePath());
         
      } catch(Exception e) {
         // if any error occurs
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

File: F:\test.txt

The following example shows the usage of Java File getAbsolutePath() method. We've created a File reference. Then we're creating a File Object using F:/test directory which is present in the provided location. Now using getAbsoluteFile() method, we're getting the directory and its path using getAbsolutePath() method.

package com.tutorialspoint;
import java.io.File;
public class FileDemo {
   public static void main(String[] args) {      
      File f = null;
      
      try {
         // create new files
         f = new File("F:/test");         
    
         // get the file
         File f1 = f.getAbsoluteFile();
         
         // prints the file path
         System.out.println("Directory: "+f1.getAbsolutePath());
         
      } catch(Exception e) {
         // if any error occurs
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Directory: F:\test

java_io_file_methods.htm

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