Java Instantiation
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This document discusses how classes provide blueprints for objects in Java and how objects are created from classes using references. References are like pointers that hold the memory address of an object. The new operator is used to instantiate objects, which are created and stored in memory. References have their own memory location but point to objects, allowing their attribute values to be accessed and modified through the reference.
Java Instantiation
- 1. a class provides the blueprint for objects; you create an object froma class
- 2. Declaration We have declared 3 References of type Point. J ava References are Variables but they can hold Object memory address like Pointers.
- 3. Instantiation The new keyword is a J ava operator that creates a new object. ObjectsReferences
- 4. Objects are created at memory locations
- 5. Set values
- 6. J ava References have their own location but point to Objects.
- 7. Are these two objects (or One) ? How we can set X &Y of the first object ? It is not possible without Reference or calling a Method.
- 8. Setting Object attribute values using Reference