Array Revision - DMU
Arrays II
containing Objects
in Classes and Methods
Arrays can contain primitive Java types or any type of objects.
Arrays can be used
in class definitions as attributes
in method definitions as parameters or return types
Array Revision
- collection of variables all of the same type (primitive types, Strings, objects), usually related in some way
- allows manipulation of data (easy sorting )
- Java arrays are implemented as objects (use of operator "new")
Syntax
elementType arrayName[ ] = new elementType[size];
Array declaration and creation
int[ ] numbers;
numbers = new int[10]; // 0 ................
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