Switch case statement is used when we have number of options (or choices) and we may need to perform a different task for each choice . The syntax of Switch case statement looks like this – switch (variable or an integer expression) { case constant: //Java code ; case constant: //Java code ; default: //Java code ; }
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You can have any number of case statements within a switch . Each case is followed by the value to be compared to and a colon. The value for a case must be the same data type as the variable in the switch and it must be a constant or a literal.
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The switch case in Java works like an if-else ladder, i.e., multiple conditions can be checked at once . Switch is provided with an expression that can be a constant or literal expression that can be evaluated. The value of the expression is matched with each test case till a match is found.16 Şub 2022
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Rules for switch statement
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The switch/case statement in the c language is defined by the language specification to use an int value, so you can not use a float value . The value of the ‘expression’ in a switch-case statement must be an integer, char, short, long. Float and double are not allowed.
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Rules for switch statement in C language Valid SwitchInvalid SwitchValid Caseswitch(x)switch(f)case 3;switch(x>y)switch(x+2.5)case ‘a’;switch(a+b-2)case 1+2;switch(func(x,y))case ‘x’>’y’;C Switch Statement – javatpoint www.javatpoint.com › c-switch
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The switch case in java executes one statement from multiple ones . Thus, it is like an if-else-if ladder statement. It works with a lot of data types. The switch statement is used to test the equality of a variable against several values specified in the test cases.
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