validation - Java validating a range of numbers from user input -


i have been having problem validation, , stressing me out, have done in various ways different loops, , 1 have of one, if take out if statement if function numbers, since program can accept numbers 1 5 want take step validating number , returning it. try declaring int option inside loop not carry out return statement.

    public int makeoption(){     int option;     system.out.println("choose following options: ");     system.out.println("(1)create entry || (2)remove entry || (3)list entry || (4)list || (5)exit ");      while(!reader.hasnextint()){             system.out.println("choose valid option.");             reader.next();     }     if(reader.nextint()<1 || reader.nextint()>5){         system.out.println("choose valid number options.");         reader.next();     }     option = reader.nextint();     system.out.println("you choosed: " + option);     return option; }

swap out if statement switch statement:

int input = reader.nextint();  switch(input) {     case 1: //            break;     // blah blah blah more cases.      default: system.out.println("please enter correct value."); }

note on code

when call reader.nextint(), you're telling stream expect int. you're not viewing same value. should store in variable, before using it.


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