Let us discuss this in more details in the next section. However, if it is missing, the program will not exit the switch statement and will continue executing until either a break statement is found, or we exit the program. It is not mandatory to have the break keyword in each case. As you can see in our example, since we used the value “B”, we started the execution from the “case B” part of the switch statement.īreak: The “break” keyword signals the program to exit the switch statement. The entry point can be entered if the input value to the switch statement matches the one in the case. Each case is defined for a specific value. The switch statement takes a single input value to be evaluated.Ĭase: The “case” keyword” signifies an entry point for execution. Switch: This signifies the start of a switch statement.
Let us go over some keywords in that example: When running this program, we will get the following output. The switch statement is fed the character value “grade”, and one of the paths will be executed depending on the value of grade.Ĭase 'Á': ("Excellent!") break Ĭase 'B': ("Very good!") break Ĭase 'C': ("Average!") break Ĭase 'D': ("Poor!") break Ĭase 'E': ("Very poor!") break Ĭase 'F': ("Failed") break The following is an example of a switch statement. A person calls the switch board staff and asks to be routed to a specific number, and the operator on the switch board will connect your call to a specific routing port, depending on the number you as for. The path that is taken will depend upon an input value provided to the switch statement.Īn analogy can be drawn from the good old days with a telephone switch board. Inside a switch statement, multiple execution paths are defined.
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8 Related Posts What is a “ switch” statementĪ “switch” statement in Java is a conditional operator used to direct the execution of an algorithm to a specific code path.
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