Java

Java

1. OOP Language

2. Non-object elements

   • will often represent number values and simple values
     • Simple non-object elements are called Primitives
       • Simple Value Ex. Boolean(True or False)
       • The first six primitives ( byte , short , int , long , float , double ) represent numbers. Each of these has a different size.

3. Object Elements

4. Variables. Variables are place holders whose contents can change.

   • Variables are data place holders
     • reference types. this variable provides a reference to an object
     • primitive types. this variable type holds a primitive
     • Literals: source code representation of a value

5. Constants. Place holders whose values cannot be changed.

6. Primitive conversion. Changing the type of a primitive to another type.

7. Operators. Operators are notations indicating that certain operations are to be performed

8. Unicode character encoding set

   • Unicode is a character set developed by a non-profit organization called the Unicode Consortium (www.unicode.org). This body attempts to include all characters in all languages in the world into one single character set.

9. ASCII characters still play a dominant role in software programming. Java too uses ASCII for almost all input elements, except comments, identifiers, and the contents of characters and strings.

10. Java Separators (),:;{}[].<>