Question 1

Compare and contrast single-precision and double-precision floating-point data types.

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Question 2

When you declare a variable, with an assignment operator (=) with the following syntax:
dataType variableName = initialValue;
How would you read the sentence?

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Question 3

Would it be better to use doubles or floats for calculations to scale up recipes to feed three times as many people as the recipes are written to serve?

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Question 4

What are three ways to add 1 to an int variable named number?

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Question 5

Assuming number is an int variable, write a statement using a shortcut operator equivalent to this one:
number = number * 5;

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Question 6

Rewrite the following into one statement:
int age;
age = 32;

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int age;
age...

Question 7

You want to insert the comment "Java is better than ice cream." Identify two ways to include this comment in your code.

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Question 8

What are some advantages of using variables?

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Question 9

Compare the variable identifiers numberOfStudentsPassing and winners. Describe which would be preferable in a program that evaluates success of a teaching program.

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Question 10

Sam wants to calculate whether his students simply passed or failed. He uses a char variable, because student grades are A through F. Is this the best data type to use? Why or why not?

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Question 11

One way to specify an initial value for a variable (variable 1) is to assign the variable the value of another variable (variable 2). Explain why it is not valid to assign variable 1 as a double and variable 2 as a float.

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Question 12

What will happen if your String literal is longer than one line?

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Question 13

List two errors in the following statement:
System.out.println( "Remember the slogan "Click It or Ticket" and buckle
your seatbelt before driving your car." );

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System.out.println(...

Question 14

How would you create an indented poem in a String literal statement?

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Question 15

Would it be better to write PI or 3.14159 in an arithmetic expression?

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Question 16

In which order should the computer do the following calculation? Solve the expression.
int dimes = 2 * 20 + 5 * 10 + 3 * 5;

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Question 17

What does the shortcut ++ do?

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Quiz 2: Programming Building Blocks- Java Basics