adding two objects

[apiwowar]

Thers a class called BigInt and it has a size and digit. size is the number of digits in the integer that is entered and digit is an array that holds the integer.

I think ive got it worked out, the only thing is that when the sum goes up a tens digit it adds a leading 0. for example if i put in 99 and 1 the sum comes out as 0100 or if i put in 999 and 1 the sum comes out as 001000. How can i get rid of the leading 0's?

This is the code

 add two BigInt’s 
   public BigInt plus(BigInt arg) 
	{ 	
		BigInt sum = new BigInt();//Create sum object
		//declare and intialize carry
		int carry = 0;	
		int i, temp;
		
		//change size of sum
      if(this.size > arg.size)
         sum.size = this.size;
      else
         sum.size = arg.size;

		//add two BigInts
		for(i = 0; i <= sum.size - 1; i++)
		{	
		temp = this.digit[i] + arg.digit[i] + carry;
			
		System.out.println(i + " Temp is " + temp);
			
		sum.digit[i] = temp % 10;
		carry = temp / 10;
		System.out.println(i + "Carry is " + carry);
		System.out.println("sum.digit[" + i +"] is " + sum.digit[i]);
		
			if(temp > 9)
			{      
     			if(sum.digit[i] == sum.digit[sum.size-1])
				{
         		sum.size = sum.size + 1;
            	System.out.println("The while loop works when i is " + i);
        	 }
	
			}		
		}
		
	return sum;
 		
	}

[Norm]

How can i get rid of the leading 0's?

How/why are the leading 0s added? If you don't want them, don't add them.

Can you explain your algorithm for adding two BigInt's?

[apiwowar]

i'm not sure how theyre added, i think they get added when i increase the size of sum in the if statement

[Norm]

If you don' t know where it happens, you need to debug your code to see.
Add some printlns to print out the values of the variables that are controlling the process.

[Fubarable]

i'm not sure how theyre added, ...

Is this your code? Or have you found it somewhere?