* 成绩的查询和排序功能实现

* 实验目的：掌握使用基本控件和合适布局管理器进行界面设计的方法，掌握简单的事件处理方法。

* 能根据要求设计出美观界面并实现所要求功能。

* 实验内容：实现成绩的查询和排序。具体要求如下：使用JTabbedPane，建立三个选项卡“成绩输入”、

* “成绩查询”、“成绩排序”

* ① 成绩输入：从界面上输入学生的学号和成绩，点击“确认”按钮进行保存。

* ② 成绩查询：输入学生的学号，点击“查询”按钮，显示该生成绩。

* ③ 成绩排序：点击“排序”按钮，将按成绩从高低显示学生的学号和成绩。

* 请选择合适的布局管理。-* Results achieved query and sorting capabilities* Purpose: To master the basic controls and appropriate layout manager interface design approach, grasp simple event handling method.* Able to design a beautiful interface according to the requirements and to achieve the required functionality.* Experiment: achieve results query and sorting. Specific requirements are as follows: Using JTabbedPane, create three tabs " achievement enter" * " query results" , " achievement sort" * ① results: input student learning and achievement from the interface, click on the " OK"　button to save .* ② results query: Enter the student' s school, click on the " Search"　button to display the student achievement.* ③ results Sort: Click on the " Sort"　button will display the results from the low number of students learning and achievement.* Please select the appropriate layout manager.