清华大学：JAVA教学课件：3-1

class Customer {
/* 说明变量屏蔽及作用域实例
*/
public static void main(String [] args) {
Customer customer = new Customer();
String name = "John Smith";
{
// 下列说明是非法的
String name = "Tom David";
customer.name = name;
System.out.println(
"The customer's name," + customer.name);
}
}
private String name;
}