用UML描述Java类

            public class Person{}
            public class Organization{}
            

            public class Person {
            private String name;
            private String socialSecurityNumber;
            private Date dateOfBirth;
            private String emailAddress;
            public String getName() { return name; }
            public void setName(String name) { this.name = name; }
            public String getSocialSecurityNumber() { return socialSecurityNumber; }
            public void setSocialSecurityNumber(String socialSecurityNumber)
            { this.socialSecurityNumber = socialSecurityNumber; }
            public Date getDateOfBirth() { return dateOfBirth; }
            public void setDateOfBirth(Date dateOfBirth) { this.dateOfBirth = dateOfBirth; }
            public int calcAgeInYears() {/*not implemented yet*/return 0;}
            }
            

            public class Person {
            ...
            private Organization employer;
            ...
            }
            

            ClassA
            {
            ...
            Vector classB; // 保存B类对象引用的Vector
            ...
            }