Java Constructor Mystery That BREAKS Beginners' Minds! 🤯 #coding #javadeveloper #shorts

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Deep Tech

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Published on June 9, 2025 6:30:53 PM ● Video Link: https://www.youtube.com/watch?v=j8gwVD6D4hE

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Constructor (1997)

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Think you understand Java constructors? 🤔 This tricky question has confused thousands of Java students!

We have a class with TWO constructors:
Default constructor calls this(5) then prints "A"
Parameterized constructor prints "B"

When we create: new temp();

What gets printed? 🧠

This demonstrates Java's constructor chaining with this() - a concept that trips up even intermediate programmers!

⚡ Key Rules:
this() MUST be the first statement
It calls another constructor in the same class
Execution order matters!

Drop your guess in the comments before seeing the answer! 👇

The result will absolutely blow your mind! 🤯

Follow for more Java OOP concepts and interview questions that will make you a better developer! 🚀

#JavaProgramming #JavaOOP #CodingInterview #JavaConstructors

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STEP-BY-STEP BREAKDOWN:

1. new temp() calls default constructor
2. Default constructor FIRST executes this(5)
3. this(5) calls temp(int x) constructor
4. temp(int x) prints "B"
5. Control returns to default constructor
6. Default constructor then prints "A"

OUTPUT: BA (not AB!)

Mind = Blown! 🤯

This is why understanding constructor chaining is CRUCIAL for Java mastery!

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