//14 Syntax:File Delete and folder

import java.io.File;

public class DeleteFile {
  public static void main(String[] args) {
  try{
     File DObj = new File("Location Of File");
     if (DObj.delete()) {
    System.out.println("Deleted the file: " + DObj.getName());
  } else {
    System.out.println("Failed to delete the file.");
  }
    }catch(Exception e){
        System.out.println("Failed to delete the folder.");
    }
    finally{
        File DFObj = new File("Location of Folder");
  if (DFObj.delete()) {
    System.out.println("Deleted the folder: " + DFObj.getName());
  } else {
    System.out.println("Failed to delete the folder.");
  }
    }
  }
}
//Note This code can only run in Your PC

Output:
Deleted the file: test.txt
Failed to delete the folder.

Output of 14 Syntax:File Delete and folder

Remaining Topics like Inheritance, Polymorphism, Hash Map, Wrapper Classes, Regex, Threads, Lamda will be added soon

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Write a Java program that remove the extra spaces from the following string:

' I am learning Java object oriented programming '

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public class TaskAnswer {
public static void main(String[] args) {
String str = "I am learning Java object oriented programming";

str = str.replaceAll("\\s", "");
System.out.println(str);
}
}

Output:
Iamlearningobjectorientedprogramming

Explanation:

str = str.replaceAll("\\s", "") : This line replaces all whitespace characters in the string str with an empty string, effectively removing them. The \\s is a regular expression pattern that matches any whitespace character, such as spaces, tabs, or newlines. The double backslash \\ is necessary because \ is an escape character in Java strings, so to represent a single backslash in a regular expression, you need to escape it with another backslash.

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Topics Covered:

00:00:00 - Intro of video
00:02:26 - Introduction to node js
00:05:59 - Setup node js environment 
00:07:33 - Installing Visual studio Code IDE
00:08:39 - Installing Node js
00:12:58 - Understand about node folder setup
00:15:18 - Basic function of js console.log
00:19:25 - Basic Datatypes of js (Start of basic javascript)
00:25:15 - Variables and Constant in js
00:33:45 - Js Object and List (Array)
00:53:08 - Javascript Operators
01:02:24 - if else Control statement in js
01:08:00 - while and for loops in js
01:17:01 - functions in javascript
01:21:23 - Understand asynchronous javascript
01:26:52 - Understand why async/await in js
01:31:01 - Understand js callback functions
01:36:38 - Use of built in modules in js (example: fs module)
01:40:32 - installing external libraries and fetching data (example axios)
01:48:14 - Anonymous functions in js
01:51:38 - Some of my words for why you learnt this js

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