[Solved] Identify the error in this Java code related to encapsulation:class User { private String password; public void setPassword(String password) { password = password; } } | Java

Java - Encapsulation

Identify the error in this Java code related to encapsulation:

class User {
  private String password;
  public void setPassword(String password) {
    password = password;
  }
}

APassword variable should be public

BSetter does not update the class field correctly

CMissing getter method

DClass should be declared public

Step-by-Step Solution

Solution:

Step 1: Analyze setter method
Setter assigns parameter to itself, not to class field, so field remains unchanged.
Step 2: Identify correct assignment
Should use 'this.password = password;' to update the class field.
Final Answer:
Setter does not update the class field correctly -> Option B
Quick Check:
Setter must assign to class field using 'this' [OK]

Quick Trick: Use 'this' to assign parameter to class field in setter [OK]

Common Mistakes:

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