java

1. applications

1.1. mobile application

1.2. disktop GUI application

1.3. gaming application

2. package

2.1. build in package

2.1.1. util

2.1.2. awt

2.1.3. swing

2.1.4. server

2.2. user Defined package

3. data type

3.1. int

3.2. float

3.3. string

3.4. double

3.5. char

4. features

4.1. simple

4.2. portable

4.3. secured

4.4. dynamic

5. operators

5.1. arithmetic operator

5.2. relational operator

5.3. misc operator

5.4. logical operator