Java OCA OCP Practice Question 3186

Question

Consider the following program: 

import java.nio.file.*;

public class Main {
    public static void main(String []args) {
        Path aPath = Paths.get("D:\\OCPJP7\\programs\\..\\NIO2\\src\\.\\Main.java");
        aPath = aPath.normalize();
        System.out.println(aPath.subpath(2, 3));
    }
}

This program prints the following:.

  • A) ..
  • B) src
  • C) NIO2
  • D) NIO2\src
  • E) ..\NIO2


B)

Note

The normalize() method removes redundant name elements in the given path, so after the call to the normalize() method, the aPath value is D:\OCPJP7\NIO2\src\Main.java.

The subpath(int beginIndex, int endIndex) method returns a path based on the values of beginIndex and endIndex.

The name that is closest to the root has index 0; note that the root itself (in this case D:\) is not considered as an element in the path.

Hence, the name elements OCPJP7, "NIO2", "src", "Main.java" are in index positions 0, 1, 2, and 3, respectively.

beginIndex is the index of the first element, inclusive of that element; endIndex is the index of the last element, exclusive of that element.

Hence, the sub path is "sub", which is at index position 2 in this path.




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