An if can be followed by an optional else block. The else block will execute if the Boolean expression tested by the if block evaluates to false. Following is the syntax. if(boolean_expression){ // statement(s) will execute if the Boolean expression is true. }
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Points to remember while using Switch Case There can be any number of case statements within a switch . Each case is followed by the value to be compared to and after that a colon.
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Use switch instead of if when:
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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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The switch expression is evaluated once. The value of the expression is compared with the values of each case . If there is a match, the associated block of code is executed . The break and default keywords are optional, and will be described later in this chapter.
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