Competitive/Collaborative Programming Class

import java.util.Scanner;
import java.math.*;
//* David Stewart
// ACM - ICPC Live Archive problem 3625
// Rounders
public class Rounders {
	
	public static void main(String args[]) {
	Scanner in = new Scanner(System.in);
	
	int counter, integer = 0;
	int[] digits = new int[9];
	String number = null;
	counter = in.nextInt();
	for (int i = 0; i < counter; i++) {
		integer = in.nextInt(); 
		number = Integer.toString(integer);
		for (int j = 0; j < number.length(); j++) {
			digits[j] = Integer.valueOf(String.valueOf(number.charAt(j)));
				}
		for (int j = number.length(); j > 0; j--) {
			if (digits[j] > 4 & j >= 1) {
				digits[j] = 0;
				digits[j-1] = digits[j-1] + 1;
			} else if (digits [j]  < 5 & j >= 1) {
				digits[j] = 0;
			} 
		}
		for (int j = 0; j < number.length(); j++) {
			
			System.out.print(digits[j]);
		}
		System.out.println();
	}
}		
}	

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