Scanner的简单例子

import java.util.Scanner;

public class ScannerTest01 {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		
		System.out.println("请输入两个整数！");
		
		String num1 = scan.next();
		String num2 = scan.next();
		
		int a = Integer.parseInt(num1);
		int b = Integer.parseInt(num2);
		
		int sum = a + b;
		
		System.out.println(a + " + " +  b + " = " + sum);
	}
}