Java - Inheritance
Which of the following method declarations correctly overrides the method void display() in the superclass?
Which of the following method declarations correctly overrides the method void display() in the superclass?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Check method signature match
Overriding requires same method name and parameters. Only public void display() matchesvoid display()signature.Step 2: Check access modifier and case sensitivity
public void display() uses public (allowed if superclass method is default or protected), private void display() is private (not allowed), void Display() has different case, void display(int x) changes parameters.Final Answer:
public void display() -> Option CQuick Check:
Exact signature and compatible access needed [OK]
Quick Trick: Same name and parameters, access can be same or less strict [OK]
Common Mistakes:
- Changing method parameters (overloading, not overriding)
- Changing method name case
- Using private access in subclass
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