Switch Statement In Java

The switch statement can be considered as an alternative for if-elseif statements. It is a multi-branch of conditional statements. It works by checking the equality of different cases. It can be used with byte, short, char, and int primitive data types. Since Java 7 one can use Strings also in the switch statement.

Format :

switch(condition){         /* if condition matches case            value code executes */         case value1 :                  // code for execution                       break;  //optional             case value2 :                  // code for execution                       break;  //optional         .....          .....               .....             default :                  //code to execute if all cases fail         }

Example :

Let's consider the following code.

int  data=200;    String dataString;    switch(data){         /* if condition matches case            value code executes */         case  100:                  dataString = "hundred";                       break;  //optional             case  200:                  dataString = "two hundred";                        break;  //optional         .....          .....             .....             default :                  dataString = "not from given cases";         }                                           System.out.println("The number is: " + dataString);

The output of the above input will be :

The number is: two hundred

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