#Switch case java string code#
Similarly, the code of case value2 is executed if expression. Each group begins with the word case, followed by a constant (usually, a numeric, character, or string. In other words, the switch statement tests the equality of a variable against multiple values. ▚Labels vs PatternsĪfter that excursion into switch vs if, let's get back to when to use what form of switch. Java switch Statement If expression matches with value1, the code of case value1 are executed. You can code as many case groups as you want or need. Since Java 7, you can use strings in the switch statement. It communicates that much more clearly than an if- else- if chain and so I hope to some day see it being used in all such situations. At first, set a string String department 'AKD05' Now, use the same string in switch as shown below switch (department) Example Now, check for every string using case as we normally do while using SWITCH CASE. Var can be an integer, character, or string in Java. Here's a bunch of possibilities for this value - pick one and compute. Switch-Case is used when we have to make a choice between the number of alternatives for a given variable. In Java 7, Java allows you to use string objects in the expression of switch statement. The default clause of a switch statement will be jumped to if no case matches the expression's value.
#Switch case java string series#
With switch becoming more powerful, my guess is that it will start to eat into the use cases for longer if- else- if chains.Īnd it makes sense because that's the core tenet of switch: The switch statement evaluates an expression, matching the expression's value against a series of case clauses, and executes statements after the first case clause with a matching value, until a break statement is encountered. This will stop the execution of more code and case testing inside the block.
translate `number`, then `callMethod` with it // as switch statement switch (number ) Īgain, this could be an if- else- if chain instead, but again I think the switch comes out ahead (for the same reasons as above). When Java reaches a break keyword, it breaks out of the switch block.
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