Prompt the error message according to what the user had entered.

Question

               for(int i = 0; i<3; i++){     
                    do{                              
                         try{
                              System.out.print("Input range for Question " +(i+1) +": ");     
                              inputQuestionRange = Integer.parseInt(input.nextLine());
                         }     catch(NumberFormatException e){
                                   System.out.println("Error: Please enter a valid number.");
                              if(inputQuestionRange > 5 || inputQuestionRange <2){
                                   System.out.println("Error: Please Range enter between 2 to 5.\n");
                    }     while(inputQuestionRange > 5 || inputQuestionRange <2);     
                         question[i] = new int[inputQuestionRange];
               }//for rangeResult:
Input range for Question 1: 2d
Error: Please enter a valid number.
Error: Please Range enter between 2 to 5.
Input range for Question 1:
I would like to prompt the error message according to what the user had input.
However when user input *2d* it just print both error message as it went into the if-else block. how can i skip the if-else block ???

Answer 1

               //Set Range
               for(int i = 0; i<3; i++){     
                    do{                              
                         try{
                              System.out.print("Input range for Question " +(i+1) +": ");     
                              inputQuestionRange = Integer.parseInt(input.nextLine());
                                   if(inputQuestionRange > 5 || inputQuestionRange <2){
                                        System.out.println("Error: Please Range enter between 2 to 5.\n");
                                   }     else{
                                             System.out.println("OK");
                         }     catch(NumberFormatException e){
                                   System.out.println("Error: Please enter a valid number.");
                    }     while(inputQuestionRange > 5 || inputQuestionRange <2);     
                         question[i] = new int[inputQuestionRange];                    
               }//for rangeResult:
Input range for Question *1*: 22
Error: Please Range enter between 2 to 5.
Input range for Question *1*: d
Error: Please enter a valid number.
Input range for Question *1*: 3
OK
Input range for Question *2*: ww
Error: Please enter a valid number.
Input range for Question *3*:
Hi, thank you for your help, i just realize another problem.
why does my Question number increment to 3, it should remain as 2 when i request for user input again. i try many ways by altering the for loop, when i insert the try & catch block in a while(!invalid), it just loop forever and crash. How can i solve this ?
Edited by: metaroot on Feb 18, 2008 1:55 PM