Java信息系统设计与开发实例（第二版）随书源代码.

				package studentms;								import com.borland.jbcl.layout.*;				import java.awt.event.*;								public class addGrade extends gradeInfo {				  public addGrade() {				    jBAdd.setVisible(false);				    jBModify.setVisible(false);				    jBDelete.setVisible(false);				    jBSee.setVisible(false);				    jBSearch.setVisible(false);				    jBSum.setVisible(false);				    jBPeople.setVisible(false);				    this.getContentPane().add(jPanel1,  new XYConstraints(3, -20, 348, 238));				    jPanel1.add(jBSave, new XYConstraints(123, 200, 53, 23));				    jPanel1.add(jBCancel, new XYConstraints(184, 200, 53, 23));				    jPanel1.add(jBExit, new XYConstraints(244, 200, 53, 23));								    xYLayout2.setWidth(320);				    xYLayout2.setHeight(260);				    this.setTitle("添加信息");				  }								}