1. Unit 1 Review
By: Mr. Jacobs

2. True/False
The first generation of programming language is assembly language.
True

3. True/False
Java is an example of a high level language.
True

4. True/False
Mistakes found early in the coding process are much more expensive to fix than mistakes found later in the process.
False

5. True/False
Byte Code is a program that behaves like a computer.
False

6. True/False
An arithmetic expression consists of operands and binary operators combined as in algebra.
True

7. True/False
Programs manipulate objects by sending them methods.
False

8. True/False
An integer is a positive or negative whole number.
True

9. True/False
Strings are objects, not primitive data types
True

10. True/False
Most, but not all, information in a computer is represented in binary form.
False

11. Fill in the blank
OOP stands for _______________.
object-oriented programming

12. Fill in the blank
The software responsible for translating a program in a high-level language to machine code is called a(n) ____________.
compiler

13. Fill in the blank
JVM stands for _______________.
Java virtual machine

14. Fill in the blank
Numbers with a fractional part are called _______________.
doubles or floating-point numbers

15. Fill in the blank
When an object receives a message, the object responds by running a block of code called a(n) _______________.
methods

16. Fill in the blank
When evaluating an expression, Java performs operations of higher ________ first unless overridden by ____________.
precedence, parentheses

17. Fill in the blank
Use the ___________ operator to create a new string out of the existing strings. +

18. Written Questions
What is the purpose of a variable?
The purpose of a variable is to store data that can be modified.

19. Written Questions What are three types of programming errors?
The three types of programming errors are syntax errors, run-time errors, and logic errors.
An example of a syntax error is the failure to include a semicolon at the end of a statement. An example of a run-time error is an attempt to divide by a variable whose current value is zero. An example of a logic error is a calculation that is off by a factor of 100.

20. Written Questions
Describe the difference between the data types double and int?
Type double refers to numbers that have a decimal point. Type int refers to whole numbers.

21. Assume x = 8 and y = 4
Solve x + y * 2 = 16

22. Assume x = 8 and y = 4
Solve (x + y) /3 = 4

23. Assume x = 8 and y = 4
Solve x - y * 3 = -4

24. Assume x = 8 and y = 4
Solve x + y * 1.5 = 14

25. Assume x = 8 and y = 4
Solve [(x - y)^(x-y)]/y 64

26. Write the code
Ask the user for their name and enter into a String variable called name.
name = reader.readLine(“What is your name?”);
System.out.print(“What is your name?”);
name = reader.readLine;

27. What shape is made?
Pen.home();
Pen.setDirection(0);
For (int i=0; i<5; i++) {
Pen.move(100);
Pen.turn(72); }
Pentagon

28. Binary
What is as a base 10 number? 23

29. Binary
What is as a base 10 number? 49

30. Binary
What is 173 as a base 2 number?