Question

How would I convert an array of integers into an integer, but in a special way?

For example, how would I convert { 1, 9, 9, 0 } into 1990?

Answer 1

This will work for any size integer array

int nums[] = { 1, 9, 9, 0 };

StringBuilder strNum = new StringBuilder();

for (int num : nums) 
{
     strNum.append(num);
}
int finalInt = Integer.parseInt(strNum.toString());
System.out.println(finalInt);