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What is the main purpose of constructor chaining in Java?

easy📝 Conceptual Q11 of 15
Java - Inheritance
What is the main purpose of constructor chaining in Java?
ATo allow one constructor to call another constructor in the same class
BTo inherit constructors from a parent class automatically
CTo create multiple objects with the same constructor
DTo override constructors with different names
Step-by-Step Solution
Solution:
  1. Step 1: Understand constructor chaining concept

    Constructor chaining means one constructor calls another constructor in the same class to reuse code.
  2. Step 2: Identify the correct purpose

    To allow one constructor to call another constructor in the same class correctly describes this behavior using this(...) to call another constructor.
  3. Final Answer:

    To allow one constructor to call another constructor in the same class -> Option A
  4. Quick Check:

    Constructor chaining = calling another constructor [OK]
Quick Trick: Constructor chaining uses this(...) to call another constructor [OK]
Common Mistakes:
  • Confusing constructor chaining with inheritance
  • Thinking constructors can have different names
  • Believing constructor chaining creates multiple objects

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