import java.io.BufferedReader;   import java.io.IOException;   import java.io.InputStreamReader;   import java.util.Scanner;      public class MainClass   {       public static void method1()       {           //使用Scanner           Scanner scanner=new Scanner(System.in);           System.out.print("Please input a number:");           int num=scanner.nextInt();  //获取整数值           System.out.println("The number you input is:"+num);           System.out.println("----------------------------");           System.out.print("Please input some character:");           String str=scanner.next();  //获取字符串值           System.out.println("The string you input is:"+str);                  }       public static void method2()       {           //使用BufferedReader           try           {               BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));               System.out.print("Please input a number:");               String str=reader.readLine();  //获取字符串               System.out.println("The number you input is:"+str);                          } catch (IOException e)           {               e.printStackTrace();           }       }   }