java 输入 Scanner

package test;

import java.util.Scanner;//导入Scanner包

public class Hello {
	
	public static void main(String []arges)
	{
		//要先创建Scanner 的对象
		Scanner in = new Scanner(System.in);
		int a = in.nextInt();
		int b = in.nextInt();
	}
	
	
	
}