("Your grade is " + grade) Ĭompile and run the above program using various command line arguments. It provides an easy way to dispatch execution to different parts of your code based on the value of an. The default case can be used for performing a task when none of the cases is true. The switch statement is Javas multiway branch statement. If no break appears, the flow of control will fall through to subsequent cases until a break is reached.Ī switch statement can have an optional default case, which must appear at the end of the switch. When a break statement is reached, the switch terminates, and the flow of control jumps to the next line following the switch statement. When the variable being switched on is equal to a case, the statements following that case will execute until a break statement is reached. The value for a case must be the same data type as the variable in the switch and it must be a constant or a literal. Each case is followed by the value to be compared to and a colon. You can have any number of case statements within a switch. The variable used in a switch statement can only be integers, convertable integers (byte, short, char), strings and enums. The following rules apply to a switch statement − You can have any number of case statements. Each value is called a case, and the variable being switched on is checked for each case. Following is the syntax of using a switch case in Java. After the release of java 7 we can even use strings in the cases. These multiple values that are tested are called cases. The Java break statements can be used (optional) to terminate the sequence of executables inside a case. Java switch statement is like a conditional statement which tests multiple values and gives one output. if ‘x’ is of integer type in a switch (x), then all the Switch cases should be of integer type. A switch statement allows a variable to be tested for equality against a list of values. The value of the Switch case should be of the same data type as the Switch case variable.
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