Java Keywords Categorized

I'd recently looking at the java keywords and thought of categorizing them to make it easier to memorize.

I'd worked on them and categorized on my best but as everything is never perfect so I need your suggestions and support to make them more effective.

Here I'd categorized them as:

1. Data Types:
1. byte
2. short
3. int
4. long
5. float
6. double
7. char
8. boolean
9. strictfp
2. Control Statements:
1. if
2. else
3. for
4. while
5. do
6. switch
7. case
8. default
9. break
10. continue
3. Access Specifier / Modifier:
1. public
2. protected
3. private
4. static
4. Class / Object / Method:
1. class
2. interface
3. enum
4. abstract
5. super
6. this
7. new
8. extends
9. implements
10. instanceof
11. void
12. return
13. native
14. final
5. Exception Handling:
1. try
2. catch
3. finally
4. throw
5. throws
6. Package:
1. package
2. import
7. Threading / IO:
1. synchronized
2. volatile
3. transient
8. Debugging:
1. assert
9. Reserved but not used:
1. goto
2. const
10. Reserved for literals:
1. true
2. false
3. null