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Java does have pointers. Any time you create an object in Java, you're actually creating a pointer to the object; this pointer could then be set to a different object or to null, and the original object will still exist (pending garbage collection). What you can't do in Java is pointer arithmetic.
3 mar 2014 · The best way to think of it is that -- more or less -- Java (implicitly) handles pointers to objects, while C++ may handle either pointers to objects, or the objects themselves. There are exceptions to this -- for example, if you declare Java "primitive" types, they are actual values that are copied, and not pointers.
In Java, pointers are not explicitly used like in languages such as C or C++. Instead, Java uses references to objects. Every variable that holds an object in Java is actually a reference to that object.
3 sty 2024 · To use a pointer in Java, you first need to declare a variable of a reference type. You can then use the new keyword to create a new object on the heap. The pointer will store the memory address of the new object. You can access the memory address of an object using the {@code addressof} operator.
Although Java does not support explicit pointers, there are features that resemble pointer behavior. Understanding and utilizing these features allow developers to manipulate objects and achieve desired functionality.
19 sty 2016 · Are there pointers in Java? The short answer is “no, there are none” and this seems to be obvious for many developers. But why is it not that obvious for others?
1 mar 2001 · it’s more accurate to say that Java has pointers; indeed, every object identifier in Java (except for primitives) is one of these pointers, but their use is restricted and guarded not only by the compiler but by the run-time system. Or to put in another way, Java has pointers, but no pointer arithmetic.
