Nested Try Catch

[Niloo Rad]

Hi,
I'm pretty new to java and I have nested Try Catch code that prints 3 times! can you tell me why?

public class test {
	
	// Global Constants
    final static int MIN_NUMBER = 1;
    final static int MAX_PRIME = 10000;
    final static int MAX_FACTORIAL = 12;
    final static int MAX_LEAPYEAR = 4000;
  
    //Global Variable
    static int a,b,c;
	
	
public static void main (String[] args) {
		//String[] myNumbers= new String [3];
			
		//int x =Integer.parseInt(args[0]);
		for(int i =0; i< args.length; i++){
			//System.out.print(args[i]+" ");
			validateInput(args[0],args[1],args[2]);
			
		}
	}
			
					
//Validate User Input
	public static boolean validateInput(String value1,String value2,String value3){
		boolean isValid = false;
				
		try{
			try{
				try{
			a = Integer.parseInt(value1);
				if(!withinRange(a,MIN_NUMBER, MAX_PRIME)) {
					 System.out.println("The entered value " + value1 +" is out of range [1 TO 10000].");
			}
				isValid = true; 		
				
			}
			catch(Exception ex) { 
				 System.out.println("The entered value " + value1 + " is not a valid integer.  Please try again.");
					}	
		
			b = Integer.parseInt(value2);
				if(!withinRange(b,MIN_NUMBER, MAX_FACTORIAL)) {
					System.out.println("The entered value " + value2 +" is out of range [1 TO 12].");
		}
				isValid = true;	
			}
	catch(Exception ex) { 
				System.out.println("The entered value " + value2 + " is not a valid integer.  Please try again.");
}
		
			c = Integer.parseInt(value3);
			if(!withinRange(c,MIN_NUMBER, MAX_LEAPYEAR)) {
				System.out.println("The entered value " + value3 +" is out of range [1 TO 4000].");
	}
			isValid = true;	
		}
catch(Exception ex) { 
			System.out.println("The entered value " + value3 + " is not a valid integer.  Please try again.");
}	
			
	        return isValid;
		
	        
	}
	

		
//Check the value within the specified range
		private static boolean withinRange(int value ,int min, int max){
		boolean isInRange = true; 
	    		
	    
	     if(value < min || value > max){
	         isInRange = false; 
	       }
		return isInRange;
		}
		
		
			
}

here is the result:

The entered value aaa is not a valid integer. Please try again.
The entered value 0 is out of range [1 TO 12].
The entered value 5000 is out of range [1 TO 4000].
The entered value aaa is not a valid integer. Please try again.
The entered value 0 is out of range [1 TO 12].
The entered value 5000 is out of range [1 TO 4000].
The entered value aaa is not a valid integer. Please try again.
The entered value 0 is out of range [1 TO 12].
The entered value 5000 is out of range [1 TO 4000].

[Niloo Rad]

took my validated method from main mehod for loop

[Campbell Ritchie]

Welcome to the Ranch
Your nested try may be unnecessary if you get your int from a Scanner in a utility method. Search my posts for “Scanner hasNextInt” and you will probably find something useful.
You should avoid catching plain simple Exception. In that case you may suffer a NumberFormatException, so look for that. Actually, the utility method will obviate any Exceptions.
If your values are outwith the required range, you should not be catching anything, but throwing something. An IllegalArgumentException, mots probably.