BufferedReader简单的菜单
Menu
boolean flag; public Menu()
{
while(true)
{
this.show();
}
} public void show()
{
System.out.println("--------菜单管理--------");
System.out.println(" [1] 创建菜单 ");
System.out.println(" [2] 修改菜单 ");
System.out.println(" [3] 删除菜单 ");
System.out.println(" [0] 退出菜单 ");
System.out.println("请选择相关的菜单进行操作:"); BufferedReader buf = null;
buf = new BufferedReader( new InputStreamReader( System.in ) );
String str = null;
int i = 0;
this.flag = true;
while(flag)
{
try {
str = buf.readLine();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
if(str.matches("\\d"))
{
i = Integer.parseInt(str);
operater(i);
}else{
System.out.println("请重新选择一个菜单：");
}
} } public void operater(int i)
{ switch(i)
{
case 1:
MenuOperater.add();
break;
case 2:
MenuOperater.update();
break;
case 3:
MenuOperater.del();
break;
case 0:
this.flag = false;
MenuOperater.exit();
System.exit(1);
break;
default:
System.out.println("您输入了一个错误的数字");
break; }
}
MenuOperater
public static void add()
{
System.out.println("新建菜单操作");
} public static void update()
{
System.out.println("修改菜单操作");
} public static void del()
{
System.out.println("删除菜单操作");
} public static void exit()
{
System.out.println("退出菜单");
}
BufferedReaderDemo3
public static void main(String[] args) {
// TODO 自动生成的方法存根
new Menu();
}