OOP tALAGA

Prepares the environment for developing java applications

Integrated Development Environment

Platform to write Java code and applications (Version 7 ngayon)

Desktop applications, client-server applications, mobile phone applications, games

Platform independent

Java Virtual Machine (JVM)

Sun Microsystems

Java Virtual Machine (JVM) and Java Development Kit (JDK)

Source code wiith .java extension

Another program called Javac that turns it into a Java byte code with .class extension (there should be no present errors)

Class file

Grayed out areas with forward slashes (// for single line comments; /* */ for multiline comments and asterisks that the compiler ignores

Starts with /** ends with */ to document the code (converted to HTML)

True

Semicolon (;)

Class segment notes the starting and ending of a java class segment code

Method

the code can be accessed outside the class without creating new objects

This part of the code does not return any value

Denotes starting point of the java program

NetBeans tries to display a list of available options after “.”

Cleans and builds your project with all necessary files for export if the program needs to be shared; will be put in a dist folder

can be text, numbers, pointers, objects or some specified memory location

Joining together direct text and a variable

True

True

False

False

+-2147483647 (use double to get a bigger/smaller number)

Order in which arithmetic’s operations are executed

Multiplication & Division > addition and subtraction

String variable

char variable

Tells java you want to use the scanner class in the util package of java library

Class that handles inputs

utility package of the java library where scanner is stored

Scanner user_input = new Scanner (System.in);

Creates the new objects

Specifies for system input

TThe variable that is called to call the input methods

Gets the next string of text or int of number that a user types

Cursor moves to a new line after the output

Cursor stays on the same line

if(Condition {//codes to be executed if true}

Greater than, < Less than, >= greater or equal to, <= less than or equal to

&& AND, || OR, == HAS A VALUE OF, ! NOT

if(condition){code to be executed} else {code to be executed}

IF statement inside another IF statement

One with two choices: True or false, yes or no, 1 or 0

Selection statement; value of the expression is

switch(your test variable) { case Testing value: statement to be executed; break; default: statement to output if no matching case found; }

Repeat execution of statements a number of times; the same statement is being repeated many time over and at some point has to stop

for(initial value; condition; increment/decrement { statements to be repeated if true }

Sets at what number should the repeat process start

Repeat should occur only when this condition is true

Move the counter forward or backward

do { Statements to execute } while (condition to check); // execution occur before checking of the condition

executes statements if the condition is true; while(condition) {}

list store of values of the same type with specifying type eof data

0

int[] myNums; [nextline ito] new int[5] to also indicate the size (all index are 0 unless stated)

arrays of multiple rows and columns (table) // 2 indices // int [][] myNums = new int[5][4]

property of an array that returns the actual length of the array

deals about creating objects that contain both data and functions

Java’s previous name

Java created

main function that accepts an array of arguments enclosed in a class

nonprintable characters 16bits

True or false1 bit

whole numbers 32 bits

smaller than int 16 bits

network packets 8 bits

larger than int 64 bits

numbers with floating points 32 bits

larger numbers with floating points

changes the value of the variable being used in the condition

the continue statement skips and moves to the end of the iteration

for-each loop cycles through an object collection where type specifies array type and itvar is the iterator variable (accepts elements from beginning to end on eat a time)

for(type itvar:collection) statement block

one-dimensional array of integers

method available in the system class that can be used to copy data from one array to another