Switch Case statement does not work correctly

I run bellow switch-case statement but it does not work. It does not run into some cases.

My code is:

int state = 0; void setup() { Serial.begin(9600); } void loop() { switch (state) { case 0: Serial.println(state); break; case 1: int aVariable = 0; Serial.println(state); Serial.println(aVariable); break; case 2: Serial.println(state); break; default: Serial.println(state); break; } state++; delay(500); }

How can I solve it?

Answer

The reason is that you declare a variable inside the case. There are two ways to solve it:

int state = 0; void setup() { Serial.begin(9600); } void loop() { int aVariable; switch (state) { case 0: Serial.println(state); break; case 1: aVariable = 0; Serial.println(state); Serial.println(aVariable); break; case 2: Serial.println(state); break; default: Serial.println(state); break; } state++; delay(500); }
int state = 0; void setup() { Serial.begin(9600); } void loop() { switch (state) { case 0: Serial.println(state); break; case 1: { int aVariable = 0; Serial.println(state); Serial.println(aVariable); break; } case 2: Serial.println(state); break; default: Serial.println(state); break; } state++; delay(500); }

You can choose one of the above ways.

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