java - Making loops in order to test values -

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• validating input using java.util.scanner [duplicate] 6 answers

i need making loop looks @ each value 1 number-1. how test each value see if divisor of number, , if is, adding sum.

this have far:

public static void main(string[] args) {   scanner input = new scanner (system.in);    system.out.print("please enter positive integer: ");   int n = input.nextint();    while (n < 0) {     system.out.println(n + " not positive.");     system.out.print("please enter positive integer: ");     n = input.nextint();   } } 

you can use starting block application:

    package testers;  import java.io.console;  public class application {      public static void main(string[] args)     {         console console = system.console();         if (console == null)          {             system.err.println("no console.");             system.exit(1);         }          boolean keeprunning = true;         while (keeprunning)         {                    string name =  console.readline("type positive integer");             try{             int integer = integer.parseint(name);             if(integer < 0){                 system.out.println("you must specify positive integer!");             }             for(int = 1; i<integer; i++){                  // our variable "i" smaller "integer". parse numbers between 1 , "integer" -1.                 if(i % 2 == 0){                     //"i" divisible 2. of course, can change value want change to.                     //here can add sum                }else{                 //"i" not divisible 2. of course, can change value want change to.                 }             }             }catch(numberformatexception e){                 system.out.println("you must specify positive integer!");             }         }     }     }