Proteins can be described as a string of beads. What is an alternative name for the string of beads ?
举一反三
- 阅读下面代码： Person 类： public class Person { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } } Servlet1: request.getSession().setAttribute("name","zhangsan"); Person p = new Person(); p.setName("lisi"); request.getSession().setAttribute("person",p); Servlet2: String name1 = (String)request.getSession().getAttribute("name"); Person p = (Person)request.getSession().getAttribute("person"); response.getWriter().write(name1); if(p!=null)response.getWriter().write(p.getName()); 浏览器先访问Servlet1，再去访问Servlet2，输出的结果是：（）
- class Person{ static{ System.out.println(name); } private static String name = "hello"; } class Demo{ public static void main(String[] args){ Person p = null; } }
- char *p="a string";该语句使指针变量p指向字符串“a string”，通过p可访问“a string”字符串的任何字符
- 下面request对象的哪个方法可以获取页面请求中的复选框的值？ A: String getParameter(String name) B: String[] getParameter(String name) C: String getParameterValues(String name) D: String[] getParameterValues(String name)
- 分析下面的程序，输出的结果是？ public class Test { public static void main(String[] args) { final Person p = new Person("张三", 23); p.setName("李四"); p.setAge(24); System.out.println(p); } } class Person { private String name; private int age; public Person() { super(); } public Person(String name, int age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "我的姓名是:" + name + ",我的年龄是:" + age ; } }