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Basic (Variable types (Local variable (is variable within a constructor,…
Basic
Variable types
Local variable
is variable within a constructor, method, block
Access modifiers (private, public,...) cannot be used for local variables
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Class/Static variable
similar to Instance variable, BUT added "static"
Info
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this keyword
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this refers to the class member:
- instance variables
- constructors
- instance methods: class's method definition
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Java NOT support multiple inheritance
= a class cannot extend more that one class
BUT a Java class can implement multiple interfaces
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Data types
Basic types
- boolean
- byte: 1 byte
- short: 2 bytes
- char: 2 bytes (character)
- int: 4 bytes
- float: 4 bytes
- long: 8 bytes
- double: 8 bytes
Operators
Differ to C operators
is Shift right zero fill operator
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Operator exist in C,
But Java
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