import java.util.Scanner;
public class A
{
	  public static void main(String[] args){
		    //创建键盘扫描器对象
		    Scanner s = new Scanner(System.in);
		    // 输出一个欢迎信息
		    System.out.println("欢迎使用");
		    System.out.print("请输入第一个数字:");
		    int num1 = s.nextInt();
		    System.out.print("请输入第二个数字:");
		    int num2 = s.nextInt();
		    System.out.println(num1 + "+" + num2 + "=" + (num1 + num2));
	  } 
}
原文:https://www.cnblogs.com/874162650-com/p/15212527.html