CSC 204 Drill and Practice

CSC 204 Drill and Practice Expressions, Types, Variables, Random Numbers

Declare a variable • Declare a variable named temperature capable of holding an integral value.

Declare and initialize a variable • Declare a variable named temperature capable of holding an integral value. • Give it the initial value 32.

Declare a variable • Declare a variable named bodyTempcapable of holding a floating point value.

Declare and initialize a variable • Declare a variable named bodyTempcapable of holding a floating point value. • Give it the initial value 98.6.

Declare and initialize a constant • Declare a constant named NORMAL_BODY_TEMP and give it the initial value 98.6.

Use the Math Library • Print the value of Pi.

Use the Math Library • Given the variable radius that represents the radius of a circle, create variables named area and circumference and assign them the area and circumference of the circle.

Type Compatibility • If you have the variables of the types defined below: • byte b; double d; • float f; inti; • long l; short s; • Which of the assignments are valid? • i = b; • i = d; • i = f; • i = l; • i = s;

Type Compatibility • If you have the variables of the types defined below: • byte b; double d; • float f; inti; • long l; short s; • Which of the assignments are valid? • l = b; • l = d; • l = f; • l = i; • l = s;

Type Compatibility • If you have the variables of the types defined below: • byte b; double d; • float f; inti; • long l; short s; • Which of the assignments are valid? • d = b; • d = l; • d = f; • d = i; • d = s;

Expressions • Give the type and values of each of the following expressions. • 2 * 3 • 2 % 3 • 2 / 3 • 2 + 3 • 2.0 * 3 • 0 % 3 • 2.0 / 3 • 24 % 3

Expressions • Give the type and values of each of the following expressions. • 4 + 2 * 3 • 4 - 3 - 2 • 4 * 2 % 3 • 4 % 3 * 2 • 10 / 3 / 2.0 • 2.0 + 4 / 6 • 2.0 * 4 / 6 • 23 % 8 % 2

Random Numbers • Create a variable named r that can generate random numbers.

Random Numbers • Using the Random variable r, assign a random integer between 0 and 10 inclusive to the integer variable val.

Random Numbers • Using the Random variable r, assign a random integer between 1 and 10 inclusive to the integer variable val.

Random Numbers • Using the Random variable r, assign a random even integer between 1 and 10 inclusive to the integer variable val.

Random Numbers • Using the Random variable r, assign a random integer between min and max, where min ≤ max , the integer variable val.

Random Numbers • Using the Random variable r, assign a random double between 0 and 1.0 to the double variable val.

Random Numbers • Using the Random variable r, assign a random double between 0 and 10.0 to the double variable val.

Random Numbers • Using the Random variable r, assign a random double between 100.0 and 150.0 to the double variable val.

CSC 204 Drill and Practice