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COP 2210 Exam 1 Review Questions with complete solution 2024

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COP 2210 Exam 1 Review Questions with complete solution 2024 COP 2210 Exam 1 Review What are the two types of categories in Java? - correct answer Primitive and Objects Give examples of Primitive types. - correct answer int long double float boolean Give examples

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  • September 6, 2024
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  • 2024/2025
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COP 2210 Exam 1 Review
What are the two types of categories in Java? - correct answer ✔Primitive
and Objects


Give examples of Primitive types. - correct answer ✔int
long
double
float
boolean


Give examples of Object type. - correct answer ✔String
Integer
Double
Buffer Reader
Car


What are the 3 things you need to make a variable in Java? - correct 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; - correct 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? -
correct answer ✔You create an Overflow


What is an Overflow? - correct 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. - correct answer ✔True, otherwise its an integer.


What primitive type do we assign for values with decimals? - correct answer
✔double


What is the error in this example?


int z = 3.14; - correct answer ✔The int needs to be change to a double or
else program will give an error.


What function do we use to print something to the console? - correct answer
✔System.out.println("");


Is it okay to assign an double value to an int? - correct answer ✔No, this will
create an error message.


Is it okay to assign a int value to a double? - correct answer ✔Yes


What function would you use to make a value a constant? - correct answer
✔Use the keyword "final".

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