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COP 2210 Exam 1 Review Questions and Answers
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COP 2210 Exam 1 Review Questions and Answers
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COP 2210 Exam 1 Review Questions andAnswers
What are the two types of categories in Java? - Answer-Primitive and Objects
Give examples of Primitive types. - Answer-int
long
double
float
boolean
Give examples of Object type. - Answer-String
Integer
Double
Buffer Reader
Car
What are the 3 things you need to make a variable in Java? - Answer-1. Give a variable
a type
2. Give a variable a name
3. Assign the variable a value
Given this example. Name what each section is.
int x = 5; - Answer-int is a type
x is the variable assigned
5 is the value assigned
What would happen if you put a number that is to big into an int value? - Answer-You
create an Overflow
What is an Overflow? - Answer-this is when the result of the computation exceeds the
range of of the variable type.
If a number literal has a decimal point it is called a floating - point. True or False. -
Answer-True, otherwise its an integer.
What primitive type do we assign for values with decimals? - Answer-double
What is the error in this example?
int z = 3.14; - Answer-The int needs to be change to a double or else program will give
an error.
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