JavaDumping/java.org

Java

• Java [4/4]
  • [X] streams
  • [X] Enums
  • [X] Autoboxing - Chapter 12
  • [X] generics - chapter 13
• general
  • Overload: Different Parameters
  • overrid: Same Parameters
• inheritance
• packages
• IO
  • Byte Streams
    • in the top of the byte sream: InputStream and OutputStream they can .
    • System.in is an object of type InputStream.
    • System.out and System.err are objs of PrintStream.
  • Characher Streams
    • Chars
      • BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); // System.in is an InputStream not a Reader so, InputStreamReader helps to convert it.
      • PrintWriter
    • Files
      • FileWriter
      • FilerReader
  • FILES
    • FileInputStream
    • FileOutputStream
• Features
  • Enums
  • AutoBoxing and auto-unboxing
  • Annotations
• Generics
  • works only with Reference types aka clases.
  • Types differ based on theri type arguments
  • generic methods use the generic type as their paramters // it can be defined in a non-generic class.

TODO Java [4/4]

[X] streams

[X] Enums

[X] Autoboxing - Chapter 12

CLOCK: [2022-06-20 h 22:50]–[2022-06-20 h 23:15] => 0:25 Clock: [2022-06-20 h 20:59]–[2022-06-20 h 21:24] => 0:25 CLOCK: [2022-06-20 h 20:29]–[2022-06-20 h 20:54] => 0:25

[X] generics - chapter 13

general

Overload: Different Parameters

overrid: Same Parameters

inheritance

packages

IO

Byte Streams

in the top of the byte sream: InputStream and OutputStream they can .

System.in is an object of type InputStream.

System.out and System.err are objs of PrintStream.

Characher Streams

Chars

BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); // System.in is an InputStream not a Reader so, InputStreamReader helps to convert it.

PrintWriter

Files

FileWriter

FilerReader

FILES

FileInputStream

FileOutputStream

Features

Enums

AutoBoxing and auto-unboxing

Annotations

Generics

works only with Reference types aka clases.

Types differ based on theri type arguments

generic methods use the generic type as their paramters // it can be defined in a non-generic class.