1- Structure of switch statement
The characteristics of switch statement:
The switch will check the value of a variable and compare that variable with each different value from top to bottom. Each value to be compared is called a case. When a case is true, the statement block of that case will be executed.
If all cases are false, the default statement block will be executed. Note: in the structure of the switch statement, there is probably or not a default statement block.
When finding a true case, the statement block of such case will be executed. If not meeting the break statement in this block, the program will continue performing the blocks below until it meets the break statement or no statement block is executed.
The break statement makes the program exit the switch. (See the illustration below).
Note that the case statement is a specific value you can not do the following:
The results of running the SwitchExample1 class:
3- break statement in switch
break means a statement to be able to appear in the case block, or default block of switch. When meeting the break statement, the program will exit the switch.
When the program meets a switch statement, it will check cases from top to bottom. When finding a true case, the block of that case will be executed. If it doesn't meet the break statement in this block, it will continue to execute the blocks below until it meets the break statement or there is no longer block to execute.
The results run: