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C Language > Learn C Language > Why does a switch statement work faster than an if-else...
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Why does a switch statement work faster than an if-else statement in the C language?

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switch case is more faster than if-else-if because, the execution control directly goes to the true case with out checking any false conditions.
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each case within a switch statement does not rely on earlier cases, the compiler is able to re-order the testing in such a way as to provide the fastest execution
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Because there are special bytecodes that allow efficient switch statement evaluation when there are a lot of cases. If implemented with IF-statements you would have a check, a jump to the next clause, a check, a jump to the next clause and so on. With switch the JVM loads the value to compare and...
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Because there are special bytecodes that allow efficient switch statement evaluation when there are a lot of cases. If implemented with IF-statements you would have a check, a jump to the next clause, a check, a jump to the next clause and so on. With switch the JVM loads the value to compare and iterates through the value table to find a match, which is faster in most cases. read less
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