Basic HTML version of Foils prepared Sept 6 1998

Foil 6 Java Types

From Java Tutorial 98-2: Java Language and Object Oriented Techniques CPS606 Fall Semester 1999 -- Sept 7 1999. by Geoffrey C. Fox, Nancy McCracken
1 Each Java variable or expression has a definite type, given by a declaration such as
  • int i;
  • double x, y, z;
  • Color c;
2 There are three "types" of types!
  • There are Primitive or Simple types such as ints or booleans which are built-in.
  • New composite types (objects) can be constructed in terms of classes and interfaces. The type of an object is its class or interface
  • Arrays we will see are a sort of "almost" object!
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