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Statement block inside switch case java1/16/2024 It works much like a regular branch but takes no value. If you need a branch that is executed if none of the labels matched, you can create one with default. Unless you have a very good reason, every switch-branch should end in a break. ![]() It is followed by the statements you want to execute if the variable has that particular value. Together, these three things are called a switch label. Inside those curly braces, you list as many branches as you like.Įach regular branch consists of the keyword case, a value that matches the variable’s type (meaning it could be assigned to it), and a colon. You use the keyword switch followed by the variable you want to switch over (as it is commonly phrased) and a pair of curly braces. Let’s jump right in and start with an example! The following switch statement writes a textual representation of the first three natural numbers to the console: // any number is fine int number = 2 switch (number ) Experience with other numeric types, enums and methods are a bonus. This article only requires working knowledge of integers and strings but the more you know about if and particularly if– else– if the more you will get out of it. The switch statement works much like a long if– else– if chain and can often be used to replace it. Given to switch, it is compared with a list of case labels that each specify a value – as soon as the first one matches, the corresponding statement block is executed. The variable must either be an enum, a String, or an integral type like int. ![]() Java’s switch statement allows the comfortable selection of one of many execution paths based on a variable’s value.
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