The Java Path interface was added to Java NIO in Java 7. toAbsolutePath() method of java.nio.file.Path used to return a Path object representing the absolute path of this path object. If the path is already absolute then the method returns path else this method resolves this path in an implementation-dependent manner by resolving the path against a file system default directory. Depending on the implementation, this method may throw an I/O error if the file system is not accessible.
Syntax:
int toAbsolutePath()
Parameters: This method accepts nothing.
Return value: This method returns a Path object representing the absolute path.
Exception: This method throws following Exceptions:
- IOError – if an I/O error occurs
- SecurityException – In the case of the default provider, a security manager is installed, and this path is not absolute, then the security manager’s
- checkPropertyAccess method is invoked to check access to the system property user.dir
Below programs illustrate toAbsolutePath() method:
Program 1:
Java
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
public class GFG {
public static void main(String[] args)
{
Path path = Paths.get("\\temp\\Spring");
Path absPath = path.toAbsolutePath();
System.out.println("Absolute Path: "
+ absPath);
}
}
|
Output: 
Program 2:
Java
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
public class GFG {
public static void main(String[] args)
{
Path path = Paths.get("Program Files\\Java");
Path absPath= path.toAbsolutePath();
System.out.println("Absolute Path: "
+ absPath);
}
}
|
Output: 
References: https://docs.oracle.com/javase/10/docs/api/java/nio/file/Path.html#toAbsolutePath()
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