Section 1
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Method
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Last updated
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Date created
Mar 1, 2020
Cards (88)
Section 1
(50 cards)
Method
Actions; functions of classes
compiler
translates a program from a high-level language to a low-level language the computer can run
process
program that is currently executing
operating system
supervisory program that oversees the operation of the computer
System.out
object for sending output to the screen
loop statement
repeats an action until a stopping condition occurs
Software
programs and data - sets of instructions for the computer to follow and relevant information that accompanies these instructions
primitive type
used for simple, non-decomposable values such as an individual number or individual character
bug
An error in a program
Class Loader (linker)
automatically connects the classes together
input
the program's instructions or the data needed by the program
bit
a digit with a value of either 0 or 1.
Syntax Errors
Grammatical mistakes in a program; compiler catches syntax errors and prints an error message
user
person who interacts with the program
Decoding
translating from the encoded symbol set back to the original symbol set
compile command
javac className.java
byte
consists of 8 bits; in main memory, resides at a numbered location called its address.
Auxiliary Memory (Secondary Memory)
More or less permanent (nonvolatile memory)
output
result(s) produced by following the instructions in the program
algorithm
finite sequence of instructions for solving a problem or performing some task.
variable
something that can store data`
Applications
regular programs, meant to be run on your computer
Processor (CPU)
processes a program's instructions
Applets
Little applications, Meant to be sent to another location on the internet
object
performs an action when you invoke or call one of its methods
switch statement
multiway branch that makes a decision based on an integral expression
if-else Statement
A branching statement that chooses between two possible actions
type cast
temporarily changes the value of a variable from the declared type to some other type
Object-oriented programming
treats a program as a collection of objects that interact by means of actions
Flow of control
order in which a program performs actions
identifier
case sensitive name, such as the name of a variable
package
library of classes that have been defined already
println
method/function to print whatever is in parentheses to the screen
exit Method
program can be terminated normally by System.exit(0);
programmer
person who writes a program
Byte-code
machine language for a hypothetical computer (or interpreter) called the Java Virtual Machine
Main memory
type of volatile memory, measured in gigabytes, GB of RAM(stands for random access memory)
syntax
grammar rules for a programming language
interpreter
A program translates each byte-code instruction, executing the resulting machine-language instructions
Hardware
tangible parts of computer systems
program
finite sequence of instructions for a computer to follow written in a programming language
statement
instruction to the computer
argument
items inside parentheses provides the information needed by methods
debugging
Eliminating errors
run command
java className
value
data stored by a variable
Logic/Semantic Errors
Errors that are not detected during compilation or while running, but which cause the program to produce incorrect results
encoding
Translating from one set of symbols to another set of symbols
class/object type
used for a class or objects and has both data and methods
Runtime Errors
Errors that are detected when your program is running, but not during compilation; terminates the program and prints an error message
Section 2
(38 cards)