Switch Case Java String Contains

Java switch case with string.

Switch case java string contains. Java program to use string class in switch case statements. Each case is followed by the value to be compared to and a colon. Each case contains a break statement. The java compiler generates generally more efficient bytecode from switch statements that use.

The following rules apply to a switch statement the variable used in a switch statement can only be integers convertable integers byte short char strings and enums. In order for the stringswitchdemo example to accept any month regardless of case month is converted to lowercase with the tolowercase method and all the strings associated with the case labels. The switch statement compares the string object in its expression with the expressions associated with each case label as if it were using the string equals method. The expression used for the switch is evaluated once in this case that would be true false as the result not a string.

Switch case statement is used when we have number of options or choices and we may need to perform a different task for each choice. User2864740 jul 19 14 at 18 03 you need to use contains google and no if won t work in switch. Consequently the comparison of string objects in switch statements is case sensitive. After java 7 release switch statement support string class also.

The switch statement also works with the string class of java enumerated types and a few special classes. The switch statement compares the string object in its expression with the expressions associated with each case label as if it were using the string equals method. The syntax of switch case statement looks like this switch variable or an integer expression case constant. I challenge anyone to come up with a set of if statements that cannot be re written using switch.

You can have any number of case statements within a switch. The string in the switch expression is compared with the expressions associated with each case label as if the string equals method were being used. The break statement is necessary to exit the switch statement see explanation in the first example. Consequently the comparison of string objects in switch statements is case sensitive.