No2. Learning Notes _ Process Control

1 ImportJava.util.Scanner;2  Public classHelloforwhile {3 4     /**5 * Document Comment, program name: Helloforwhile Process Control Development time: 2016-03-07 Hey6      * */7      Public Static voidMain (string[] args) {8         //TODO auto-generated Method Stub9SYSTEM.OUT.PRINTLN ("Test");Ten         inty = 50; One         intx = 800; A         BooleanZ; -         //compound statements, also called block statements, are enclosed in {}. -         { thez = y >x; -System.out.println ("" "1" y>x established? " +z); -         } -         //If statement, only one statement can omit curly braces; +         if(X >y) -System.out.println ("" 2 "x greater than Y set"); +         //if...else ... A         if(X >y) { atSystem.out.println ("3" x greater than y! "); -}Else { -System.out.println ("" 4 "x is less than or equal to y! "); -         } -         //If...else If ... Multi-Branch Statements -         intMath = 79; in         if(Math > 90) { -System.out.println ("Math score" excellent "!) "); to}Else if(Math > 80) { +System.out.println ("Math score" good "!) "); -}Else if(Math > 60) { theSystem.out.println ("Math Score" qualified "!) "); *}Else { $System.out.println ("The Math Score" failed!) ");Panax Notoginseng         } -         //A multi-branch statement in which the value in a switch statement expression must be an integer or a character type.  the         //1.1, "OK" is illegal. +         intSeason=3; ASystem.out.println ("Enter a number to represent the season bar:" +season); the         Switch(season) { +          Case1: -System.out.println ("Spring"); $              Break; $          Case2: -System.out.println ("Summer"); -              Break; the          Case3: -System.out.println ("August");Wuyi              Break; the          Case4: -System.out.println ("Winter"); Wu              Break; -         default: AboutSystem.out.print ("The value of season is not an integer of 1-4 and does not represent any season ~"); $             } -  -         //Problem One: Verifying the legality of login information -Scanner scan=NewScanner (system.in); ASystem.out.println ("Please enter user name:"); +String username=scan.nextline (); theSystem.out.println ("Please enter password"); -String userpw=scan.nextline (); $         if(!username.equals ("Sunshine")) {//Why this cannot be used: (Username= "Sunshine") theSystem.out.println ("Username is incorrect! "); the         } the         Else if(!userpw.equals ("123456")) { theSYSTEM.OUT.PRINTLN ("The password is incorrect! "); -         } in         Else { theSystem.out.println ("Congratulations, login successful!") "); the         } About          the         //assign a department to a new employee the         the.................................................. Continue to update ...... ..... ..................... +          -}//Main the     Bayi      the}//Helloforwhile

No2. Learning Notes _ Process Control