CSAwesome Java: Unit 1 Review

Which is the correct way to declare and initialize an integer variable?

• int x = 3;

• integer x = 3;

• integer x is 3;

• int x is 3;

Which is the correct numeric java type to use for decimals?

• integer

• double

• char

• boolean

• String

Which option correctly declares a string variable?

• String name = Chris;

• string name = "Chris";

• string name = 'Chris';

• String name = "Chris";

• String name = 'Chris';

Which variable name is invalid and will cause an error?

• eightName

• _8name

• 8name

• $eightname

Which code segment will print “Hello Karel” to the screen in Java?

• System.out.printLine("Hello Karel");

• print "Hello Karel";

• System.out.println("Hello Karel");

• System.println("Hello Karel");

What will this code segment output?

System.out.println("Hello");

System.out.println("World");

• Hello

  World

• HelloWorld

• Hello World

• Hello

  
  

  World

Which of the below is not a primitive type in Java?

• int

• char

• boolean

• line

• double

Which of the following is a proper way to declare and initialize a variable in Java?

• myInteger = 100;

• char = 'a';

• int myNumber = 10;

• "Variable"

What is the result of the expression?

13%7

• 7

• 6

• 2

• 1

Which of the below is NOT a Java arithmetic operator?

• +

• -

• #

• /