JAVA：基本输入输出 - 与计算机交互

package step3;

import java.util.Scanner;

public class IO {
public static void main(String[] args) {
int number1;
int number2;
int number3;
/********** Begin *********/
Scanner scanner = new Scanner(System.in);
number1= scanner.nextInt();
number2= scanner.nextInt();
number3=number2+number1;
System.out.print(+number3);

/********** End *********/
}

}