Java_ The switch statement of the basic syntax

1 /*Switch Statement2 format:3 switch (expression)4     {5 Case takes value 1:6 execute the statement;7 Break ;8 Case takes value 2:9 execute the statement;Ten Break ; One         ..... A Default: - execute the statement; - Break ; the     } -  - */ - classSwitchdemo + { -      Public Static voidMain (string[] args) +     { A         intx = 3; at         Switch(x)/*Features: 1 The selected type can only support four types: byte short int char - 2, the alternative answer does not specify the order, but the execution will start with the first case, each case is executed, and if there is a match, the execution is complete . - The switch is ended by a break in case, and if there is not a match, the default is executed.  -                     - The switch statement ends in only two cases: 1 execution to break 2 execution to the end of the switch statement -                   */ in                    -         { to              Case4: +System.out.println ("a"); -              Break; the              Case2: *System.out.println ("B"); $              Break;Panax Notoginseng              Case3: -System.out.println ("C"); the              Break; +             default: ASystem.out.println ("D"); the              Break; +              -         } $          $         inta=4,b=2; -         Charch = ' + '; -         Switch(CH) the         { -              Case+:WuyiSystem.out.println (A +b); the              Break; -              Case‘-‘: WuSystem.out.println (A-b); -              Break; About              Case‘*‘: $System.out.println (A *b); -              Break; -              Case‘/‘: -System.out.println (A/b); A              Break; +             default: theSystem.out.println ("Nono") -              $              the         } the      theSystem.out.println ("Hello world!"); the          -     } in      the      the}

Switch statement Practice

classswitchtest{ Public Static voidMain (string[] args) {/*int week = 2;            Switch (week) {case 1:system.out.println (week+ "is Monday");            Break            Case 2:system.out.println (week+ "is Tuesday");            Break                    Default:System.out.println (week+ "does not exist");        } System.out.println ("Hello world!"); */                intMonth =4; /*Switch (month) {Case 3:system.out.println (month + "Monthly is Spring");            Break            Case 4:SYSTEM.OUT.PRINTLN (month + "Monthly is Spring");            Break            Case 5:SYSTEM.OUT.PRINTLN (month + "Monthly is Spring");            Break            DEFAULT:SYSTEM.OUT.PRINTLN (month + "months not present");                    Break }*/        Switch(month) { Case3:             Case4:             Case5: System.out.println (Month+ "Month is Spring");  Break;  Case6:             Case7:             Case8: System.out.println (Month+ "Month is Summer");  Break;  Case9:             Case10:             Case11: System.out.println (Month+ "Month is Autumn");  Break;  Case12:             Case1:             Case2: System.out.println (Month+ "Month is Winter");  Break; default: System.out.println (Month+ "Month does not exist");  Break; }                    }        }

Java_ The switch statement of the basic syntax