读取控制台的字符串_方法二

package com.cici.common;

import java.io.BufferedReader;

import java.io.InputStreamReader;





public class SystemIn {

     public static int readInt(){

          BufferedReader br = null;

          try{

           br = new BufferedReader( new InputStreamReader( System.in) ) ;

           String line = br.readLine();

           int ret = Integer.parseInt( line );

           return ret ; 

          }catch( Exception e ){

           e.printStackTrace();

           return -1 ;

          }

         } 

         

         public static double readDouble(){

          BufferedReader br = null;

          try{

           br = new BufferedReader( new InputStreamReader( System.in) ) ;

           String line = br.readLine();

           double ret = Double.parseDouble( line );

           return ret ; 

          }catch( Exception e ){

           e.printStackTrace();

           return -1 ;

          }

         }

         

         public static String readString(){

          BufferedReader br = null;

          try{

           br = new BufferedReader( new InputStreamReader( System.in) ) ;

           String line = br.readLine();

           return line ; 

          }catch( Exception e ){

           e.printStackTrace();

           return null;

          }

         }

        }



        class Test{ 

         public static void main( String args[] ){

          int i = SystemIn.readInt();

          double d = SystemIn.readDouble();

          String s = SystemIn.readString();

          System.out.println( i + "\t" + d + "\t" + s ) ;

         } 

}

public class SystemInApp{

 

public static void main(String[] args) throws Exception {



        

        System.out.println("Please insert the pageNO :"); int pageNo =

        SystemIn.readInt();

         

         System.out.println("Please insert the lineMount :"); int lineMount =

         SystemIn.readInt();

         

         System.out.println("Please insert the listMount :"); int listMount =

         SystemIn.readInt();

 

    

}