Java Primitives Unit 1-B

Match the following

• Package

• A class within java.util. It contains code specifically designed to help with user input.

• Scanner class

• Used to group code into a folder for easy use.

• variable.nextInt( )

• Allows users to input int values.

• variable.nextLine( )

• Allows users to input String values.

• variable.nextDouble( )

• Allows users to input double values.

Match the following

• implicit casting

• When a calculation relies on a number outside the acceptable number range, Java will wrap back to the MIN or MAX value depending on the value.

• overflow

• Turning something of one type into another type!

• (int) (x + .05)

• Rounds the value of a double to the nearest whole number.

• casting

• When Java automatically casts the value correctly without the programmer needing to do so

Click on the data type.

Click on the variable name.

Click on the what creates a new object.

Click on the argument or actual parameter.

If you collect a users age and then collect their name what is the result? Assuming the user age is 16 and name is "Eric" and you are using the appropriate println statement.

• 16

  Eric

• 16

• Eric 16

• 16 Eric

Answer explanation

Remember to add a buffer if you use an int or double before a String.

If you collect a user's favorite color and then collect their favorite food, what is the result? Assuming the user's favorite color is "Blue" and favorite food is "Pizza" and you are using the appropriate println statement.

• Blue

  Pizza

• Blue

• Pizza Blue

• Blue Pizza

If you collect a user's birth year and then collect their birth month, what is the result? Assuming the user's birth year is 2000 and birth month is "July" and you are using the appropriate println statement.

• 2000

  July

• 2000

• July 2000

• 2000 July

If you collect a user's height and then collect their weight, what is the result? Assuming the user's height is 180cm and weight is 75kg and you are using the appropriate print statement.

• 180cm

  75kg

• 180cm

• 75kg 180cm

• 180cm 75kg