Java Note 7 entry

1  in order to make the program's data more consistent with the development data, we added keyboard entry.
     Make the program more flexible.
    
     So, how do we implement keyboard data entry?
        a: Guide Package
             format:
                import java.util.Scanner;
             Location:
                  on class.
        b: Create a Keyboard entry object
             Format:
                scanner sc = new Scanner (system.in) ;
        c: Get Data from Objects     
              Format:
                int x = Sc.nextint ();

Import Java.util.Scanner; class Scannerdemo {    publicstaticvoid  main (string[] args) {        //  Create a keyboard entry data object        new  Scanner (system.in);                System.out.println ("Please enter a data:");         int x = sc.nextint ();                System.out.println ("The data you entered is:" +x);}    }

1 /*2 Practice:3 keyboard input Three data, get the maximum value of these three data4 keyboard input Two data to compare whether the two data is equal5 */6 ImportJava.util.Scanner;7 8 classScannerTest3 {9      Public Static voidMain (string[] args) {Ten         //keyboard input Three data, get the maximum value of these three data One      A         //Creating a Keyboard entry object -Scanner sc =NewScanner (system.in); -          theSystem.out.println ("Please enter the first data:"); -         intA =sc.nextint (); -          -System.out.println ("Please enter a second data:"); +         intb =sc.nextint (); -          +System.out.println ("Please enter a third data:"); A         intc =sc.nextint (); at          -         //get the maximum value in these three data -         inttemp = ((a > B)?a:b); -         intmax = (temp > c?)temp:c); -System.out.println ("Max:" +max); -System.out.println ("------------------"); in          -         //keyboard input of two data toSystem.out.println ("Please enter the first data:"); +         intx =sc.nextint (); -          theSystem.out.println ("Please enter a second data:"); *         inty =sc.nextint (); $         Panax Notoginseng         //Compare whether the two data are equal -         BooleanFlag = (x = =y); theSystem.out.println ("flag:" +flag); +     } A}

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Java Note 7 entry