What is required in a switch statement?

What is required in a switch statement?

A typical syntax involves: the first select , followed by an expression which is often referred to as the control expression or control variable of the switch statement. subsequent lines defining the actual cases (the values), with corresponding sequences of statements for execution when a match occurs.

Which statement is true about the switch statement?

The statements in a switch continue to execute as long as the condition at the top of the switch remains true.

What is the need of the break statement in the switch case?

The break statement is used inside the switch to terminate a statement sequence. When a break statement is reached, the switch terminates, and the flow of control jumps to the next line following the switch statement.

Which of the following is mandatory in the switch statement?

Default’ case is mandatory in a switch statement.

How do switch statements work?

A switch works with the byte , short , char , and int primitive data types. A statement in the switch block can be labeled with one or more case or default labels. The switch statement evaluates its expression, then executes all statements that follow the matching case label.

What must a switch statement evaluate to?

Only one case is selected per execution of the switch statement. The value of expression determines which case is selected. expression must evaluate to byte, short, char, or int primitive data, a String , or a few other types not discussed further here. The statements execute until a break statement is encountered.

How many cases can a switch statement have?

Microsoft-specific. Microsoft C doesn’t limit the number of case values in a switch statement. The number is limited only by the available memory. ANSI C requires at least 257 case labels be allowed in a switch statement.

What is case control structure in C What is the reason for using break statement at the end of each case in case control block?

break statement in C: Break statement is used to terminate the while loops, switch case loops and for loops from the subsequent execution.

Is break keyword mandatory in switch statement in C?

A switch statement can have an optional default case, which must appear at the end of the switch. The default case can be used for performing a task when none of the cases is true. No break is needed in the default case.

What is mandatory in switch case?

No its not neccesary. the default case in switch statement is not necessary,but it is useful when no case in switch is satisified or not matched then automatically it executes the default statement,if it is not there ,the switch statement is terminated. Ch.

How many case statements are usually used in the switch statement?

ANSI C requires at least 257 case labels be allowed in a switch statement.

What is a case in a switch statement?

A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.