The document provides an overview of basic Java programming concepts including definitions of variables, literals, declarations, and assignments. It also outlines various data types in Java like integers, doubles, booleans, characters, and strings. An example of variable declaration and assignment is given to illustrate how variables work in memory.

1. JAVA

2. JAVA
BASIC JAVA PROGRAM

3. JAVA
BASIC DEFINITIONS
▸ Variable - a name that refers to a value
▸ Literal - the actual value directly written into the code
▸ Declaration - specifies the name and type of a variable
▸ Assignment - assigns a literal value to a variable
Variable
Declaration
Assignment
Literal

4. JAVA
DATA TYPES
Type values example
int integers 13 256 -12
double floating-point numbers 3.1415 2.4 -0.13
boolean truth values true false
char characters A’ ‘z’ ‘!’
String words and sentences “Hello” “I like food.”
Primitive types
Object

5. JAVA
VARIABLES AND MEMORY
int myint;
myint = 42;
RAM
myint
Code
42