Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Java, pt 1
Java Language terms and concepts for upcoming exam or quiz
| Question | Answer |
|---|---|
| Characteristics of Java | Simple, OOP, Distributed, Interpreted, Robust, Secure, Architecture-neutral, Portable, Performance, Multithreaded, & Dynamic |
| Credited as the main(or at least a major part of) developer of the Java program | James Gosling |
| Origin of Java | 1991’s Green Project with the purpose of finding the next big thing in computer programming. Based on C++ while removing weakness and enhancing strengths. |
| JDK | Java Development Kate. What you will use to develop programs, but NOT run them. |
| Java strings are ONLY defined by | (“ ”) double quotation marks |
| Void methods return | Nothing |
| Class | Every program must have at least 1. With a Unique name that is a noun, descriptive, and start w/ upper case letter. |
| Public and Private | Access modifiers |
| Main Method | Usually the second line. Required to run a class. Program is executed and ran from here. OOP version of a function. Use verbs when not naming the main one. |
| Statement Terminator | (;) Semi Colan |
| Reserved Words Definition | Keywords or words that have a specific meaning to the compiler and cannot be used for other purpose() |
| Comments | (//) |
| Blocks | ({}) Also called Curley braces |
| Used for arguments for a method | () |
| Primitive Data Types | Specifies the size and type of variable values, and it has no additional methods. byte, short, int, long, float, double, boolean and char |
| Reserved Words | char, boolean, float, double, int, byte, short, long, Final, while, for, do, return, Switch, Case, default, and Break |
| Concatenation | (+) Helps combines parts of a string to create a sentence |
| Strongly Typed Language Definition | Must declare variable and variable type BEFORE USING IT!! (Like C++). |
| Variable names are called | Identifiers |
| Identifier Rules | Sequence of characters that consist of letters, digits, underscores(_), and dollar signs ($), CAN’T start with a digit, CAN’T be a reserved word, CAN’T be true, false, or null |
| Double type values are | More accurate than the float type values |
| Literal | Constant value that appears directly in the program |
| ++j | Pre Increment: Increment Var by 1, and use the new var value in the statement |
| j++ | Post Increment: Increment var by 1, but use the original var value in the statement |
| k = 1; j = k; i = j; | i = j = k = 1; |
| Int a = 10, b = 10, c = 10; | int a, b, c; |
| boolean type and operators = relational operators | (<, >, ==, !=, <=, >=) |
| Logical Operators | (&&, ||, !, ^) |
| Loops | Iterations |
Created by:
Tain45
Popular Computers sets