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| programs and data those programs use |
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| two primary funcitons of the operating system |
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| user interface and managing computer resources |
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| what happens to information when it is stored digitally |
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| X bits is capabable of storing how many items? |
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| What two items make up the core of a computer? |
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| Name of a location in memory |
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Loses all information when power is lost
ex main memory |
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| Where does prociessing being in a Java applicaiton |
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anything starting with a number
anyhting with a hashtag |
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| empty space in a compute program that does not affect program exectution but it used mainly for formatting |
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| A language that uses key terms to represent other terms used in machine languages. |
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| What java is translated into when it is compiled. translated into machine language. |
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| syntax of a programming language |
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| dictates exactly how sentences can be formed so that they are understood corectly |
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| describe what will happen when the sentence is executed |
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| error reached when the program is compiled |
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| causes the program to termiate abnormally |
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| error associated with syntax and semantics |
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| 5 steps to solve a program |
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Definition
1. understanding the problem
2. designing a solution
3. considering alternatives
4. implimenting the solution
5. testing the solution |
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| inputs passed through a method |
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| intruscting the compiler to reserve a space in memory large enough space to store a value. |
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byte short int long
float double
char
boolean |
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| Objects represent everything else that primitive tpyes dont. |
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| rules that establish the order in which operations are evaluated |
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| why are widening conversions safer than narrowing conversions |
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Definition
| because usually there is no loss of information |
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Definition
| inidcated a variable does not refrence an object. |
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| wat does the new operator accomplish |
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| when 2 variables refrence the same object |
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| a method that can be invoked through the name of the class in which they are defined. |
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| format of an enumrated variable |
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| enum season{winter, spring, fall, summer} |
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| the location in whihc the variable is declared |
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| What are UML diagrams designed to do? |
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Definition
| to visualize relationships among classes and objects |
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| what does it mean for an object to be self governing? |
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Definition
| That an objects instnace data should only be changed from within the object. |
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Definition
| the methods within an object |
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| A java reserved word to characterize a variable. |
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| can be directly refrenced from outisde the class |
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Definition
| can only be seen from inside the class |
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| what are constructors used for? |
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| to initilize a newly instantitiated object |
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| order with whihc statements are exectuted |
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| why must we be careful when compating floating point values for equality |
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Definition
| because even though sometimes they may be close, they might not always match up |
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| create a scanner statement that reads from info.dat |
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| Scanner scan = new Scanner(new File("info.dat")); |
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Definition
| if else statements, while loops |
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| the statement to be tested true or false |
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| static variables are shared amongst all instnaces of a class. |
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| what kind of variables can the main method refrence |
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| one class relies on another |
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Definition
| being composed of other objects |
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Definition
| breaking a method up to have a more understanable design |
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| how are overloaded methods differentiated from each other |
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| powerful programming construct used to group and organize data |
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| how is each element of an array refrenced |
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Definition
| By calling the index with which the element the array is stored in |
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Definition
| the type of value stored in an array |
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| when is memory allocated for the array |
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| what is a command line argument |
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Definition
| an argument provded when the interpretur is invoked. |
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