if...else

See also:

if ... else

Like if statements, switch...case controls the flow of programs by allowing programmers to specify different code that should be executed in various conditions. In particular, a switch statement compares the value of a variable to the values specified in case statements. When a case statement is found whose value matches that of the variable, the code in that case statement is run.

The break keyword exits the switch statement, and is typically used at the end of each case. Without a break statement, the switch statement will continue executing the following expressions ("falling-through") until a break, or the end of the switch statement is reached.

The break keyword exits the switch statement. It is typically used at the end of each case. Without a break statement, the switch statement will continue executing the following expressions ("falling-through") until a break or the end of the switch statement is reached.

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Like if statements, switch...case controls the flow of programs by allowing programmers to specify that different code should be executed in various conditions. In particular, a switch statement compares the value of a variable to the values specified in case statements. When a case statement is found whose value matches that of the variable, the code in that case statement is run.

The break keyword exits the switch statement. It is typically used at the end of each case. Without a break statement, execution will continue ("fall-through") to the next case, continuing until a break statement or the end of the switch statement.

      //do something when var equals 1

      //do something when var equals 2

Syntax

switch (var) {
  case label:
    // statements
    break;
  case label:
    // statements
    break;
  default: 
    // statements
}

Parameters

var: the variable whose value to compare to the various cases

label: a value to compare the variable to

Switch / case is slightly more flexible than than an if/else structure in that the programmer can determine if the switch structure should continue checking for matches in the case list, after finding a match. If the break statement is not found after running the code for a matched case, the program will continue to check for more matches among the other cases. If a break statement is encountered, case exits the structure, in the same manner as the if/else if construction.

• break - without break, the switch statement will continue checking through the case statements for any other possible matches. If one is found, it will run that as well, which may not be your intent. Break tells the switch statement to stop looking for matches, and exit the switch statement.

Switch / case is slightly more flexible than than an if/else structure in that the programmer can determine if the structure should continue checking for matches in the case list, after finding a match. If the break statement is not found after running the code for a matched case, the program will continue to check for more matches among the other cases. If a break statement is encountered, case exits the structure, in the same manner as the if/else if construction.

Just like if statements, switch / case statements control the flow of programs. Switch/case allows the programmer to build a list of "cases" inside a switch curly bracket. The program checks each case for a match with the test variable, and runs the code if a match is found.

Switch / case is slightly more flexible than than an if/else structure in that the programmer can determine if the structure should to continue checking for matches in the case list. If the break statement is not found after running the code for a matched case, the program will continue to check for matches among the other cases. If a break statement is encountered, case exits the structure, in the same manner as the if/else if construction.

Just like if statements, switch / case statements control the flow of programs. Switch/case allows you to make a list of "cases" inside a switch curly bracket. The program checks each case for a match with the test variable, and runs the code if if a match is found.

• break - important, without break, the switch statement will continue checking through the statement for any other possible matches. If one is found, it will run that as well, which may not be your intent. Break tells the switch statement to stop looking for matches, and exit the switch statement.

switch / case statements

Just like If statements, switch case statements help the control and flow of the programs. Switch/case allows you to make a list of "cases" inside a switch curly bracket. The program checks each case for a match with the test variable, and runs the code if if a match is found.

Switch / Case statements

• break - important, without break, the switch statement will continue checking through the statement for any other possibile matches. If one is found, it will run that as well, which may not be your intent. Break tells the switch statement to stop looking for matches, and exit the switch statement.

      // break is optional

      // break is optional, without it, case statement goes on checking for matches

      // default is optional

Switch Case statements

• break - important, without break, the switch statement will continue checking through the statement for any other possibilities. If one is found, it will run that as well, which may not be your intent. Break tells the switch statement to stop looking for matches, and end its function.

Switch Case statements

Just like If statements, switch case statements help the control and flow of the programs. Switch case's allow you to make a list of "cases" inside a switch bracket in which arduino will find the most suitable and run it.

Parameters

• var - variable you wish to match with case statements
• default - if no other conditions are met, default will run
• break - important, without break, the switch statement will continue checking through the statement for any other possibilities. If one is found, it will run that as well, which may not be your intent.

Example

  }
 @]

Reference Home

  switch (var) {
    case 1:
      //do something when var == 1
      break;
    case 2:
      //do something when var == 2
      break;
    default: 
      // if nothing else matches, do the default
  }