What is the difference between declaring a reference variable and creating an object?
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what is reference variable in java Informational
- How do reference variables relate to the concept of method chaining in Java?
- How is a reference variable declared in Java?
- Perform null checks before accessing members of a potentially null reference variable.
- What are bounded type parameters and how do they restrict the types of objects that reference variables can refer to?
- How do reference variables work with interfaces in Java?
- When you pass a variable number of arguments to a varargs parameter, what is the actual type of the parameter in the method signature?
- How are reference variables used to link nodes together in a linked stack or a linked queue?
- How can you avoid unintentionally modifying objects when passing them as arguments through reference variables?
- What is the "throw" keyword used for in relation to exception object reference variables?
- How can you use the methods of the Class object (obtained via a reference) to inspect and manipulate the runtime behavior of objects?
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