Unit 2

1. - an operator used to compare values or expressions
4. - a constructor with no parameters
7. - a combination of data and operators that evaluates to a single value
9. - shortcut syntax to perform an operation on both operands and assign the result into the variable on the left
16. - a source code representation of a value, such as a number or text
17. - giving a starting value to a variable using the assignment operator ( = )
18. - defining two or more constructors or methods with the same name but different signatures
22. - copying the value of the actual parameter to the constructor's formal parameter
23. - a basic data type that Java predefines
28. - an object-oriented programming concept where the instance variables of a class are hidden from other classes and can be accessed only through the methods of the class
30. - starts with a \ to indicate how to display a String
31. - to cut off data from the end
32. - to define a method in a subclass with the same method signature as a method inherited from a superclass
34. - a variable declared and accessible within a specific block of code
35. - where a variable can be used
36. - a constructor that has a specific number of arguments to be passed to assign values to an object's instance variables

2. - the value to assign to the formal parameter
3. - the first line of the constructor which includes the public keyword, the constructor name, and any parameters
5. - gives the value that is currently assigned to an instance variable
6. - to improve the readability, reusability, or structure of program code without altering its functionality
8. - a keyword used to set the visibility of classes, variables, constructors, and methods
10. - a predefined value that is used by a program when the user does not provide a value
11. - a library of prewritten classes
12. - a combination of expressions
13. - a logical statement that gives either a true or false value
14. - a copy of the value is given to where the method is called
15. - a software development principle that stands for "Don't Repeat Yourself" which aims to reduce repetition in code
19. - a collection of methods or reusable components of code
20. - the value to be passed to a constructor or method
21. - using the assignment operator ( = ) to initialize or change the value stored in a variable
24. - a data type that contains a pointer to the memory location of an object
25. - a variable defined in a class that represents an attribute of an object
26. - the attributes of an object that are represented by its instance variables
27. - when two Strings are joined together
29. - the data that is operated on
33. - changes the value assigned to an instance variable