类

/**学生类，包括学生的基本信息*/public class StudentTest{public static void main(String[] args){Student tom = new Student("Tom","20020410");tom.setStudentSex("man");tom.setStudentAddress("America");System.out.println(tom.toString());}}class Student{private String strName = "";//学生姓名private String strNumber = "";//学号private String strSex = "";//性别private String strBirthday = "";//出生年月private String strSpeciality = "";//专业private String strAddress = "";//地址public Student(String name, String number){strName = name;strNumber = number;}public String getStudentName(){return strName;}public String getStudentNumber(){return strNumber;}public void setStudentSex(String sex){strSex = sex;}public String getStudentSex(){return strSex;}public String getStudentBirthday(){return strBirthday;}public void setStudentBirthday(String birthday){strBirthday = birthday;}public String getStudentSpeciality(){return strSpeciality;}public String getStudentAddress(){return strAddress;}public void setStudentAddress(String address){strAddress = address;}public String toString(){String information = "学生姓名=" + strName + ", 学号 =" + strNumber;if( !strSex.equals("") )information += ", 性别 =" + strSex;if( !strBirthday.equals("") )information += ", 出生年月=" + strBirthday;if( !strSpeciality.equals("") )information += ", 专业=" + strSpeciality;if( !strAddress.equals("") )information += ", 地址=" + strAddress;return information;}}

 

运行结果：

 

学生姓名=Tom, 学号 =20020410, 性别 =man, 地址=America