Hi all, can someone help me find what's going wrong in my code? When the program runs and it goes to get the user input, the program does not respond with any feedback, ie I type find Susan, and it does not tell me if Susan is in my txt file or not
Directory.Java
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.util.Scanner;
public class Directory {
//String array directory for holding directory items
final int maxDirectorySize = 1024;
String directory[] = new String[maxDirectorySize];
int directorySize = 0;
File directoryFile = null;
Scanner directoryDataIn = null;
Directory(String directoryFileName) {
directoryFile = new File(directoryFileName);
try {
directoryDataIn = new Scanner(directoryFile);
}
catch (FileNotFoundException e) {
System.out.printf("File %s not found, exiting!",
directoryFile);
new File("Directory.txt");
System.exit(0);
//set up directoryFile to read from directoryFileName for reading
//Load data from the file into the array directory
}
// Loading Directory
while (directoryDataIn.hasNext())
directory[directorySize++] = directoryDataIn.nextLine();
}
public boolean inDirectory (String name) {
for(int i = 0; i<directorySize;)
if (directory[i].equalsIgnoreCase(name)){
return true;
}
return false;
}
public boolean add(String name) {
if (directorySize == 1024)
return false;
directory[directorySize] = name;
directorySize++;
return true;
//directory size will be increased by an amount of 1
}
//returns true if successful in adding name to directory; false otherwise
public boolean delete(String name) {
for (int i=0; i < directorySize; i++) {
if (directory[i].equalsIgnoreCase(name)){
for(int e = i;e < directorySize-1; e++){
directory[e]=directory[e+1];
}
directorySize-=1;
return true;
}
}
return false;
}
public void closeDirectory() {
directoryDataIn.close();
// close explicitly before writing
PrintStream directoryDataOut = null;
// now open the directory data file for writing
try {
directoryDataOut = new PrintStream(directoryFile);
}
catch (FileNotFoundException e) {
System.out.println("File %s not found, exiting!");
System.exit(0);
}
// write updated directory back to file
for (int i = 0; i < directorySize; i++)
directoryDataOut.println(directory[i]);
directoryDataOut.close();
}
//sets up the directoryFile for writing (after closing it)
//write updated data to the directoryFile and close it
}
DirectoryWithObjectDesign.Java
import java.util.Scanner;
public class DirectoryWithObjectDesign {
public static void main(String[] args) {
String directoryDataFile = "Directory.txt";
Directory d = new Directory(directoryDataFile);
Scanner stdin = new Scanner(System.in);
System.out.println("Please Enter One of The Following, Find, Add, Delete:");
//Create/initialize the directory object
//Tell the user the system is ready and waiting to execute commands
while (stdin.hasNext()) {
String command = stdin.next().trim();
// using trim to get rid of leading whitespace
String name = stdin.nextLine().trim();
// using trim to get rid of leading + trailing whitespace
if (command.equalsIgnoreCase("find")) {
if (d.inDirectory(name))
System.out.println(name + " is in the directory");
else
System.out.println(name + " is NOT in the directory");}
else if (command.equalsIgnoreCase("add")) {
if (d.add(name))
System.out.println(name + " added");
else
System.out.println(name + " already in directory");
} else if (command.equalsIgnoreCase("delete")) {
if (d.delete(name))
System.out.println(name + " deleted");
else
System.out.println(name + " NOT in directory");
} else {
System.out.println("bad command, try again");
}
stdin.close();
d.closeDirectory();
}
}}
