[Solved] Find the error in this code snippet:class Student { int id; String name; public Student(int id, String name) { id = id; name = name; } } | Java

Java - Classes and Objects

Find the error in this code snippet:

class Student {
  int id;
  String name;

  public Student(int id, String name) {
    id = id;
    name = name;
  }
}

AInstance variables are not assigned correctly due to shadowing.

BConstructor name is incorrect.

CMissing return type in constructor.

DInstance variables must be static.

Step-by-Step Solution

Solution:

Step 1: Analyze variable assignment in constructor
Parameters have same names as instance variables, causing shadowing. Assignments like 'id = id;' assign parameter to itself.
Step 2: Correct assignment approach
Use 'this.id = id;' and 'this.name = name;' to assign parameters to instance variables.
Final Answer:
Instance variables are not assigned correctly due to shadowing. -> Option A
Quick Check:
Use 'this' to avoid shadowing [OK]

Quick Trick: Use 'this' to refer to instance variables when shadowed. [OK]

Common Mistakes:

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