![]() ![]() ![]() Let’s take the following code as reference, with some if/else if and instanceof. In Java, a switch statement is used to transfer control to a particular block of code, based on the value of the variable being tested. Definitively improving the readability of our code, avoiding nested if/elseif/else for many circumstances, and providing features that we see in other programming languages. A statement in the switch block can be labeled with one or more case or default labels. This is the first step towards a more declarative and “null-safe” programming style, allowing a better way to express and model data, recognizing the semantics of the data model through patterns. The body of a switch statement is known as a switch block. It is up to Java 17 that it is available in a stable long support (LTS) release. Example: SwitchStringExample.java Test it Now. The case statement should be string literal. It is important to note that switch expressions have been in the language since previous versions of Java, starting in Java 12 in preview mode and receiving constant improvements with the following versions of Java. Java allows us to use strings in switch expression since Java SE 7. A switch statement first evaluates its expression. That is the difference, being an expression it can return values, also include patterns to the case. Based on the value of the expression given, different parts of code can be executed quickly. Points to remember while using Switch Case. Maybe someone wonders, – But, does the switch already exists in Java? and the answer is yes, as a statement that only evaluates a data but does not return a value. The switch statement or switch case in java is a multi-way branch statement. Java 17 has come up with some cool features for the language, one of which is switch expressions. ![]()
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