Java Loop Practice Questions for Beginners | Logic Building with for & while Loop

Veröffentlicht am: 10 Juni 2026
auf dem Kanal: Vamshikrishna DevLab

Practice Java Loops by solving real programming questions step by step with simple explanations for beginners.

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Learning loops is not enough.

To become a programmer, you must learn how to apply loops to solve problems and build logic.

In this video, we'll solve beginner-friendly Java loop questions step by step and understand the thought process behind each solution.

This video changes that.

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📌 What you'll understand:
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→ Sum of Numbers from 1 to 10
→ Print Even Numbers from 2 to 20
→ Count Digits in a Number
→ Sum of Digits in a Number
→ Reverse a Number
→ Understanding the Logic Before Coding
→ Choosing the Right Loop
→ Dry Run Techniques
→ Common Beginner Mistakes
→ Logic Building Tips

Real coding. Step-by-step thinking. Practical examples. Zero confusion.
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⏱ Timestamp
00:00 - Introduction to Beginner Level Logic Building
00:32 - Creating the For Loop Practice Class in IntelliJ IDEA
00:43 - Find Sum of Numbers from 1 to 10
03:20 - Step by Step Dry Run and Value Tracking for Sum Program
07:10 - Print Even Numbers from Two to Twenty
08:44 - Introduction to While Loop Logic Building Concepts
09:56 - Crucial Rules: Extracting and Removing Digits Using Ten
10:35 - Math Concept: Modulus vs Division for Last Digit Handling
12:11 - Count Digits in a Given Number
15:55 - Sum of Digits in a Number Explanation
16:42 - Code: Combining Modulus and Division with Sum Variable
20:06 - Dry Run and Mathematical Testing with Large Numbers
21:43 - Reverse a Given Number Logic Setup
22:39 - Code: Math Formula for Reversing Placement Position
25:06 - Complete Code Run and Output Verification
26:40 - Outro and Goal for Upcoming Nested Loops Video

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#VamshiDevLab @Vamshikrishna_DevLab

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