Class disp_filetypes { public static void main(String args[]) { Path dir = \"C:\\mydir\"; List list Source Files(Path dir) throws IO Exception { List result = new Array List(); try (Directory Stream stream = Files. new Directory Stream(dir, \"*.{c,h,cpp,hppJava}\")) { for (Path entry: stream) { result. add(entry);}} catch (Directory lterator Exception ex) {//I/O error encounter during the iteration, the cause is an IO Exception throw ex .get Cause();} for(i=0;i Solution Sequential version import java.io.IOException; import java.nio.file.Path; import java.util.ArrayList; import java.util.List; /** * * @author prmsh */ public class disp_filetypes { public static void main(String args[]) { Path dir = \"C:\\mydir\"; List<Path.listSourceFiles (Path dir) throws IOException { List<Path> result = new ArrayList<>(); long startTime = System.currentTimeMillis(); try (DirectoryStrean<Path> stream = Files.newDirectoryStream(dir, \"*.{c,h,cpp,hpp,java}\")) { for (Path entry : stream) { result.add(entry); } } catch (DirectoryIteratorException ex) { throw ex.getCause(); } for (int i = 0; i < result.size(); i++) { System.out.println(result[i]); } long endTime = System.currentTimeMillis(); long totalTime = endTime - startTime; //printing time taken System.out.println(totalTime); } } } ---------------------------------------------------------------------------------------------------------------------------------------------- Parallel version import java.io.IOException; import java.nio.file.Path; import java.util.ArrayList; import java.util.List; /** * * @author prmsh */ public class disp_filetypes { public static void main(String args[]) { Path dir = \"C:\\mydir\"; List<Path.listSourceFiles (Path dir) throws IOException { List<Path> result = new ArrayList<>(); long startTime = System.currentTimeMillis(); try (DirectoryStrean<Path> stream = Files.newDirectoryStream(dir, \"*.{c,h,cpp,hpp,java}\")) { for (Path.parallelStream() entry : stream) { result.add(entry); } } catch (DirectoryIteratorException ex) { throw ex.getCause(); } for (int i = 0; i < result.size(); i++) { System.out.println(result[i]); } long endTime = System.currentTimeMillis(); long totalTime = endTime - startTime; //printing time taken System.out.println(totalTime); } } } .

1. Class disp_filetypes { public static void main(String args[]) { Path dir = "C:mydir"; List list
Source Files(Path dir) throws IO Exception { List result = new Array List(); try (Directory
Stream stream = Files. new Directory Stream(dir, "*.{c,h,cpp,hppJava}")) { for (Path entry:
stream) { result. add(entry);}} catch (Directory lterator Exception ex) {//I/O error encounter
during the iteration, the cause is an IO Exception throw ex .get Cause();} for(i=0;i
Solution
Sequential version
import java.io.IOException;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author prmsh
*/
public class disp_filetypes {
public static void main(String args[]) {
Path dir = "C:mydir";
List<Path.listSourceFiles
(Path dir) throws IOException {
List<Path> result = new ArrayList<>();
long startTime = System.currentTimeMillis();
try (DirectoryStrean<Path> stream
= Files.newDirectoryStream(dir, "*.{c,h,cpp,hpp,java}")) {
for (Path entry : stream) {
result.add(entry);
}
} catch (DirectoryIteratorException ex) {
throw ex.getCause();
}
for (int i = 0; i < result.size(); i++) {

2. System.out.println(result[i]);
}
long endTime = System.currentTimeMillis();
long totalTime = endTime - startTime;
//printing time taken
System.out.println(totalTime);
}
}
}
---------------------------------------------------------------------------------------------------------------------
-------------------------
Parallel version
import java.io.IOException;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author prmsh
*/
public class disp_filetypes {
public static void main(String args[]) {
Path dir = "C:mydir";
List<Path.listSourceFiles
(Path dir) throws IOException {
List<Path> result = new ArrayList<>();
long startTime = System.currentTimeMillis();
try (DirectoryStrean<Path> stream
= Files.newDirectoryStream(dir, "*.{c,h,cpp,hpp,java}")) {
for (Path.parallelStream() entry : stream) {
result.add(entry);
}
} catch (DirectoryIteratorException ex) {
throw ex.getCause();
}
for (int i = 0; i < result.size(); i++) {
System.out.println(result[i]);
}
long endTime = System.currentTimeMillis();
long totalTime = endTime - startTime;
//printing time taken

3. System.out.println(totalTime);
}
}
}