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How can I initialize multiple Java variables with the same value concisely?

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2024-10-27 20:31:30709browse

How can I initialize multiple Java variables with the same value concisely?

Declaring Multiple Variables with Identical Values in Java

Question:

In Java, it can be tedious to declare multiple variables of the same type and value individually, as seen in the following example:

String one = "", two = "", three = "" etc...

Is there a concise and efficient way to initialize multiple variables simultaneously, like:

String one, two, three = ""

Answer:

Yes, it is possible to initialize multiple variables of the same type to the same value in Java. To achieve this, declare all the variables without initializing them, followed by a single assignment:

String one, two, three;
one = two = three = "";

This approach is particularly useful for immutable objects. However, it is important to note that for mutable objects, this approach may not be suitable. In such cases, each variable should be initialized separately to avoid references to the same instance:

Person firstPerson = new Person();
Person secondPerson = new Person();
Person thirdPerson = new Person();

Alternatively, consider using arrays or Collections for more efficient handling of multiple instances.

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