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How does memory allocation in Java work for creating objects?
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Before a Java object can be created the class byte code must be loaded from the file system (with .class extension) to memory.
This process of locating the byte code for a given class name and converting that code into a Java Class class instance is known as class loading. There is one Class created for each type of Java class. Translated to programming terms this is when the "new" keyword calls the object constructor. All objects in java programs are created on heap memory. An object is created based on its class. You can consider a class as a blueprint, template, or a description how to create an object. When an object is created, memory is allocated to hold the object properties. An object reference pointing to that memory location is also created. To use the object in the future, that object reference has to be stored as a local variable or as an object member variable. |
