How to Efficiently Declare Multiple Variables with Identical Values in Java?

Declaring Multiple Variables with Identical Values in Java

As a Java developer, you may encounter the need to initialize multiple variables of the same type and assign them a common value. While the conventional approach involves declaring each variable separately, is there a more efficient and concise solution?

The Java Way

Java's syntax does not directly support initializing multiple variables with a single assignment. The common practice is to declare each variable separately and assign the value individually:

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

A Simplified Alternative

However, there is an elegant workaround using a combination of variable declaration and assignment:

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

This approach separates the variable declaration from the value assignment. It's important to note that this technique works only for immutable objects (e.g., strings, integers). For mutable objects (e.g., arrays, collections), it can lead to unintended consequences.

Using Mutable Objects

If you need to work with mutable objects, it's advisable to instantiate each variable separately:

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

Alternatively, you can consider using an array or a Collection to hold the objects, which provides more flexibility and control over the variables.

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