java学习（9）：杭电1002.大数处理问题

import java.math.BigDecimal;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		String temp1 = null;
		String temp2 = null;
		String result = null;
		int i;

		int a = scanner.nextInt();
		for (i = 0; i < a; i++) {
			temp1 = scanner.next();
			temp2 = scanner.next();

			BigDecimal bigDecimal1 = new BigDecimal(temp1);
			BigDecimal bigDecimal2 = new BigDecimal(temp2);

			result = bigDecimal1.add(bigDecimal2).toString();
			if (i != (a - 1)) {
				System.out.println(
						"Case " + (i + 1) + ":\r\n" + bigDecimal1 + " + " + bigDecimal2 + " = " + result + "\r\n");
			}else{
				System.out.println(
						"Case " + (i + 1) + ":\r\n" + bigDecimal1 + " + " + bigDecimal2 + " = " + result);
			}

		}

	}

}