First Java Program - Input/Output, Debugging and Datatypes
In this video we run our first Java program from scratch, providing a hands on demo of every step.
We cover input and output in Java, data types, type conversion and casting, debugging, control flow, loops, and also solve a few problems.
Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us!
👉 Resources
- Join Replit: http://join.replit.com/kunal-kushwaha
- Complete Java DSA playlist: • Java + DSA + Interview Preparation Co...
- Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA...
➡️ Connect with me: https://www.techwithkunal.com
=========================================
Timestamps:
0:00 Introduction
1:32 Creating .java file
1:11 Setting Up Few Things
3:07 Structure of Java File
7:57 Creating Main Function
9:58 Writing First Line of Code (Printing "Hello Word!")
10:37 Converting .java to .class (Byte Code)
12:23 Running Main.class
12:40 Explanation of words of the Program
12:59 What is 'public' (1st line)?
13:12 What is 'class'?
13:30 What is 'Main' in this code
13:56 What is 'main function'?
14:35 What is 'public' (2nd line)?
15:06 What is 'static'?
18:24 What is 'void'?
19:07 Array and Arguments
21:00 Changing Location of Byte Code
22:25 Location of 'javac' and 'java'
24:31 Environment Variable PATH
27:25 Starting with IntelliJ IDEA
29:49 Some Shortcuts
30:17 What is a 'package'?
32:42 What is 'System.out.println()'?
34:45 Outputs in Java
39:25 Inputs in Java
46:40 Primitive Data Types in Java
54:14 Comments in Java
55:08 Int Input Program
59:47 Literals and Identifiers
1:01:18 String Input Program
1:02:38 Float Input Program
1:04:39 Sum of Two Numbers
1:07:30 Type Conversion and Casting
1:07:48 Type Conversion
1:08:39 Conditions for Type Conversion
1:10:24 Typecasting
1:12:20 Automatic Type Promotion in Expressions
1:18:25 Java follows Unicode
1:19:20 Rules for Type Promotion
1:21:18 Example for thorough review of concepts
1:25:00 Basics of while loops and for loops
1:25:13 if condition
1:26:00 while loops
1:27:19 for loops
1:28:03 When to use - while loop and for loop
1:28:45 Temperature Conversion Program
1:31:52 Outro
#java #placement #dsa #interviews
Watch video First Java Program - Input/Output, Debugging and Datatypes online without registration, duration hours minute second in high quality. This video was added by user Kunal Kushwaha 03 August 2021, don't forget to share it with your friends and acquaintances, it has been viewed on our site 1,280,061 once and liked it 21 thousand people.