📌 Rules to Remember While Writing a Switch Case in Java

Here are key points to keep in mind when using switch cases in Java:

1️⃣ No Duplicate Values:

- Each case must have a unique value.

2️⃣ Matching Data Types:

- The case values must match the data type of the variable in the switch.

3️⃣ Constants or Literals Only:

- Variables are not allowed in a case. Use constants or literals.

4️⃣ Break Statement:

- It is used to terminate execution and prevents the code from falling through to the next case.

5️⃣ Optional Break:

- If break is not included, the execution will move to the next case.

6️⃣ Default Statement:

- It’s optional and can appear anywhere in the block to handle unmatched cases.

💡 Tip: Always use break to avoid unintentional behavior unless fall-through logic is required!

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