LESSON 07 WORK

PROGRAM ANALYSIS

Analyze the programs below and state what will be displayed on the Serial Monitor. Copy and paste the program and run it to see if you are correct.

Careful, some are tricky.

You will have to write a quiz that will have this exact format (but no computer to check your answers).

PROGRAM #1 - IF

void setup()

{

Serial.begin(9600);

int a = 400;

if (a < 500)

{

Serial.println("yo");

}

}

void loop()

{}

PROGRAM #2 – IF ELSE

void setup()

{

Serial.begin(9600);

int a = 400;

if (a < 500)

{

Serial.println("yoyo");

}

else

{

Serial.println("bobo");

}

}

void loop()

{}

PROGRAM #3 – IF ELSE

void setup()

{

Serial.begin(9600);

int a = 400;

if (a >= 500)

{

Serial.println("coco");

}

else

{

Serial.println("nono");

}

}

void loop()

{}

PROGRAM #4 – EQUAL TO

void setup()

{

Serial.begin(9600);

int a = 300;

if (a == 500)

{

Serial.println("boca");

}

else

{

Serial.println("yoda");

}

}

void loop()

{}

PROGRAM #5 – NOT EQUAL TO

void setup()

{

Serial.begin(9600);

int a = 300;

if (a != 500)

{

Serial.println("mama");

}

else

{

Serial.println("papa");

}

}

void loop()

{}

PROGRAM #6 – NOT EQUAL TWO ß (See what I did there?)

void setup()

{

Serial.begin(9600);

int a = 3;

if (a != 3)

{

Serial.println("wola");

}

else

{

Serial.println("soda");

}

}

void loop()

{}

PROGRAM #7 – ELSE IF

void setup()

{

Serial.begin(9600);

int a = 7;

if (a < 5)

{

Serial.println("caca");

}

else if (a < 10)

{

Serial.println("lala");

}

else

{

Serial.println("wawa");

}

}

void loop()

{}

PROGRAM #8 – ELSE IF #2

void setup()

{

Serial.begin(9600);

int a = 3;

if (a < 5)

{

Serial.println("yes");

}

else if (a < 10)

{

Serial.println("wes");

}

else

{

Serial.println("less");

}

}

void loop()

{}

PROGRAM #9 – NO ELSE

void setup()

{

Serial.begin(9600);

int b = 42;

if (b == 5)

{

Serial.println("five");

}

else if (b > 100)

{

Serial.println("alive");

}

}

void loop()

{}

PROGRAM #10 – MULTIPLE ELSE IF

void setup()

{

Serial.begin(9600);

int b = 4;

if (b == 1)

{

Serial.println("one");

}

else if (b == 2)

{

Serial.println("two");

}

else if (b == 3)

{

Serial.println("three");

}

else if (b == 4)

{

Serial.println("four");

}

else

{

Serial.println("five");

}

}

void loop()

{}

PROGRAM #11 – MULTIPLE ELSE IF #2

void setup()

{

Serial.begin(9600);

int b = 6;

if (b == 1)

{

Serial.println("one");

}

else if (b == 2)

{

Serial.println("two");

}

else if (b == 3)

{

Serial.println("three");

}

else if (b == 4)

{

Serial.println("four");

}

else

{

Serial.println("five");

}

}

void loop()

{}

PROGRAM #12 – COMPOUND OPERATOR AND

void setup()

{

Serial.begin(9600);

int mark = 74;

if (mark >= 0 && mark <= 100)

{

Serial.println("legal");

}

else

{

Serial.println("illegal");

}

}

void loop()

{}

PROGRAM #13 – COMPOUND OPERATOR OR

void setup()

{

Serial.begin(9600);

int mark = 74;

if (mark < 0 || mark > 100)

{

Serial.println("illegal");

}

else

{

Serial.println("legal");

}

}

void loop()

{}

PROGRAM #14 – EXPRESSION IN IF STATEMENT

void setup()

{

Serial.begin(9600);

Serial.print("abc");

int x = 4;

if (x – 1 > 3)

{

Serial.println("def");

}

else

{

Serial.println("ghi");

}

}

void loop()

{}

PROGRAM #15 – DOUBLE TROUBLE

void setup()

{

Serial.begin(9600);

double value = 74.135;

if (value == 74.1)

{

Serial.println("same");

}

else

{

Serial.println("different");

}

}

void loop()

{}

PROGRAM #16 – NESTED IF STRUCTURES

void setup()

{

Serial.begin(9600);

int value = 6;

if (value < 100)

{

if (value > 0)

{

Serial.println("yuk");

}

else

{

Serial.println("duck");

}

}

else

{

Serial.println("stuck");

}

}

void loop()

{}

PROGRAM #17 – NESTED IF STRUCTURES #2

void setup()

{

Serial.begin(9600);

int a = 7;

int b = 4;

int c = 5;

if (a >= b + c)

{

Serial.println(a);

}

else

{

if (a < b)

{

Serial.println(b);

}

else

{

Serial.println(c);

}

}

}

void loop()

{}