LockedMe.java

package simpliLearnProjectPhaseOne;

import java.io.File;

import java.io.FileWriter;

import java.util.Scanner;



public class LockedMe 
{
static final String projectpath="C:\\Users\\rohit\\eclipse-workspace\\LockedMeFIle";
	
	public static void main(String[] args) 
	{
		
		int ch;
		while(true) {
			Scanner obj = new Scanner(System.in);

			
			displayMenu();
			System.out.println("Enter your choice:");
			ch=Integer.parseInt(obj.nextLine());
			
			switch(ch)
			{
				case 1: getAllFiles();
						break;
				case 2: createFiles();
						break;
				case 3: deleteFiles();
						break;
				case 4: searchFiles();
						break;
				case 5: System.exit(0);
						break;
				default: System.out.println("Invalid Option");
						break;
			}
		}
		

}
	
	public static void displayMenu()
	
	
	{
		System.out.println("=====================================================");
		System.out.println("\tWelcome to LockedMe.com \n\tSecure your file Here");
		System.out.println("\tDeveloper Name: Rohit kumar Mohanty");
		System.out.println("=====================================================");
		System.out.println("\t1. Display all the files");
		System.out.println("\t2. Add a new file");
		System.out.println("\t3. Delete a file");
		System.out.println("\t4. Search a file");
		System.out.println("\t5. Exit");
		System.out.println("=====================================================");
	}
	
	public static void getAllFiles()
	{
		File[] listOfFiles = new File(projectpath).listFiles();
		
		if(listOfFiles.length==0)
			System.out.println("No files exist in the directory");
		else
		{
			for(var l:listOfFiles)
			{
				System.out.println(l.getName());
			}
		}
	}
	
	public static void createFiles()
	{
		try
		{
			Scanner obj = new Scanner (System.in);
			String fileName;
			int linesCount;
			
			System.out.println("Enter file name:");
			fileName=obj.nextLine();
			
			System.out.println("Enter how many lines you want to add in file");
			linesCount=Integer.parseInt(obj.nextLine());
			
			
			FileWriter fw = new FileWriter(projectpath+"\\"+fileName);
			
			for(int i=1;i<=linesCount;i++)
			{
				System.out.println("Enter file content line:");
				fw.write(obj.nextLine()+"\n");
			}
			
			System.out.println("File Created Successfully");
			fw.close();
			
		}
		catch (Exception ex)
		{
			System.out.println("Some error occured.");
			
		}
		
			
	}
	
	
	public static void deleteFiles()
	{
		Scanner obj = new Scanner(System.in);
		try
		{
			String fileName;
			System.out.println("Enter file name to be deleted:");
			fileName=obj.nextLine();
			
			File fl = new File(projectpath+"\\"+fileName);
			
			if(fl.exists())
			{
				fl.delete();
				System.out.println("File deleted successfully");
			}
			else
			{
				System.out.println("File do not exist");
			}
		}
		catch(Exception Ex)
		{
			System.out.println("Some error occured");
		}
	}
	
	public static void searchFiles()
	{
		Scanner obj = new Scanner(System.in);
		try
		{
			String fileName;		
			System.out.println("Enter file name to be searched:");
			fileName=obj.nextLine();
		
		File fl = new File(projectpath+"\\"+fileName);
		
		if(fl.exists())
		{
			System.out.println("File is available");
		}
		else
		{
			System.out.println("File is not available ");
		}	
	}
		catch(Exception Ex)
		{
			
		}
		
	}
}