Term
| What is the main reason why computers are programmed. |
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Definition
| So that they can perform tasks. |
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Term
| Why do programmers develop computer programs. |
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Definition
| To perform new tasks! HAHAHA. |
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Term
| What lies at the heart of a computer? |
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Definition
| CPU (Central Processing Unit) |
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Term
| Where are Data and programs stored in a computer. (Hardware-wise) |
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Definition
| Primary storage and secondary storage. |
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Term
| Give 2 examples of primary storage. |
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Definition
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Term
| Give 2 examples of secondary memory. |
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Definition
| Hard drive and floppy disks. |
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Term
| Where does CPU read its machine instructions from? |
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Definition
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Term
| T/F: Does machine instructions depend on the CPU type? |
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Definition
| F. Most of the time it does, but sometimes, Java Virtual Machine, it doesn't. This is caused because JVM has its own set of instructions on top of the cpu and therefore translates to different cpu. |
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Term
| What are the format of Machine Instructions. |
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Definition
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Term
| What is Assembly language's purpose. |
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Definition
| To make it easier to generate machine language. Machine language is a lot of numbers, and commanding a computer with a lot of numbers proves difficult. |
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Term
| What is High-level language's purpose. |
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Definition
| To make it easier to generate machine code. Java is an example. Another reason is that it helps you describe tasks at a higher conceptual level than machine code. |
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Term
| What does a compiler do to Java code. |
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Definition
| Translates the langauge into JVM code, called bytecode. |
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Term
| T/F Java is case sensitive. |
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Definition
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Term
| What is the fundamental building block of Java programs. |
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Definition
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Term
| Each class contains definitions of what? |
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Definition
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Term
| Each method contains sequence of what |
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Definition
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Term
| What does every java application contain? |
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Definition
| a class with a main method. |
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Term
| Why do Yu and other professional programmers use comments. |
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Definition
| To help dumb human readers understand the highly complicated programmers. |
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Term
| What is the form of calling a method of another class. |
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Definition
| OBJECT.METHOD(PARAMETERS) |
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Term
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Definition
| A sequence of characters enclosed in quotation marks. |
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Term
| T/F Programming language does not have a set of rules. |
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Definition
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Term
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Definition
| The violation of a set of rules a programming language has. |
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Term
| What detects a syntax error? |
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Definition
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Term
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Definition
| First of all, logic error is NOT A SYNTAX ERROR. Logic errors are actions that the program perform but the programmer did not attend. |
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Term
| What is an editor? (in terms of computers) |
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Definition
| program for entering and modifying text (Such as a java program) |
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Term
| What does a java interpreter do? |
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Definition
| runs a program, loading necessary bytecode from class files and library files. |
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Term
| What do u manipulate in ur program when u invoke a method. |
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Definition
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Term
| what do public interfaces do? |
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Definition
| Specifies what you can do with the interface's objects. But the implementation is hidden altho they r carried out. |
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Term
| What are, metaphorically, factories for objects? |
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Definition
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Term
| What operator do u ues in order to construct a new object of a class. |
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Definition
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Term
| Where do u store object locations? |
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Definition
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Term
| T/F Not all object variables must be initialized before you access them. |
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Definition
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Term
| What does an object reference describe? |
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Definition
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Term
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Definition
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Term
| How do u use a class from another package? |
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Definition
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Term
| What does a method definition specify? |
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Definition
| The name of the method, parameters of the method, and the statements in which the method carries out. |
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Term
| Where does an object store its state? (The data needed to excute its statements) |
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Definition
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Term
| T/F each object of a class has its own set of instance fields. |
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Definition
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Term
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Definition
| The process of hiding object data and providing methods for data access. |
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Term
| What is the purpose of a constructor. |
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Definition
| To contain instructions to initialize objects. |
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Term
| which operator invokes a constructor. |
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Definition
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Term
| What r overloaded methods. |
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Definition
| Methods with the same name but different parameter types. |
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Term
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Definition
| the process of finding the essential feature set for a class. |
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Term
| T/F you don't have to initialize a instance field. |
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Definition
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Term
| T/F parameter variables and local variables stay when methods exits. |
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Definition
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Term
| What denotes the implicit parameter. |
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Definition
| this acting as a parameter. |
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Term
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Definition
| once a value has been set and described with this constant, then the value cannot be changed. |
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Term
| Does a static method operate on an object. |
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Definition
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Term
| What method do u use to prompt for input? |
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Definition
| JOptionPane.showInputDialog |
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Term
| What kind of program can u use System.exit(0)? |
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Definition
| A program that has a graphical user interface. |
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Term
| How do u read from a console? |
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Definition
| Wrap System.in inside a BufferReader |
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Term
| What exception should u tag in order to call the readLine method of BufferReader. |
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Definition
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Term
| What r the 3 types of Java programs |
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Definition
| console application, applets, and graphics application. |
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Term
| What r relational operators. |
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Definition
| Operators that tests true or false. ==, >=, > <=, etc. |
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Term
| What should be used to compare strings. |
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Definition
|
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Term
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Definition
| this method compares strings in dictionary order. |
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Term
| what is a predicate method? |
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Definition
| A method that returns a boolean value. |
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Term
| When does one class depend on another? |
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Definition
| When the class uses objects of that other class. |
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Term
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Definition
| dependency between classes. |
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Term
| What is the side effect of a method? |
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Definition
| any eternally observable behavior outside the implicit parameter. |
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Term
| can a method in Java change its primitive type parameter? |
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Definition
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Term
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Definition
| God, his angelic superior. |
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Term
| How do you acquire a shadowed variable from a local field? |
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Definition
| Use this.shadowed variable. |
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Term
| Why do we prefer unit tests as opposed to other tests? |
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Definition
| So we can test each class in isolation. |
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Term
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Definition
| tests that test with the boundary inputs that r still valid by last to be valid. |
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Term
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Definition
| A slow but reliable method to compute s result for testing purpose. |
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Term
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Definition
| a set of tests for repeated testing. |
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Term
| What is regression testing? |
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Definition
| repeating previously run tests to ensure that known failures of prior versions do not appear in new versions of the software. |
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Term
| What is black-box testing? |
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Definition
| A testing method that does not take the structure of the implementation into account. |
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Term
| What is White-box testing? |
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Definition
| uses information about the structure of a program to test. |
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Term
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Definition
| Measure of how many parts of a program have been tested. |
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Term
| What is a program trace? (bet u don't know, I wage 1 penny) |
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Definition
| Trace messaes that show the path of execution. |
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Term
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Definition
| a list of all pending method calls at a particular point of time. |
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Term
| What are the 3 concepts u need to know in order to master the debugger? |
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Definition
| Breakpoints, single-stepping, and inspecting varaibles. |
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Term
| T/F the debugger can show the absence of a bug? |
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Definition
| False, the debugger can only analyze the precense of a bug? |
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Term
| What is the difference between a Class and a Java interface? |
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Definition
| A Class contains a bunch of stupid students trying to transform them into higher standing human beings. While an interface does not provide the implementations. |
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Term
| How do u realize an interface? |
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Definition
| By supplying all methods of the interface into the class that implements it. |
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Term
| What is so good about a interface? (there are many answers) |
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Definition
| reduce the coupling between classes. |
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Term
| what does the instanceOf operator do? |
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Definition
| It tests whether an object belongs to a particular type. |
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Term
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Definition
| principle that behavior can vary depending on the actual ype of an object. |
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Term
| What is early binding and what is late binding. |
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Definition
Early binding: when the compiler makes the selection of which class' method should be used when there is more than one candidate with the same method.
Late binding: when the program does the selection while its running. |
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Term
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Definition
| classes declared inside another. |
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Term
| T/F inner classes can access local variables? |
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Definition
| False, the local variable must be declared final. |
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