person

Question

public class Person {
                      private String name;
                      private String sex;
              private int age;
                      public Person(){};
                      public Person(String name,String sex,int age)
              {
             this.name=name;
                             this.sex=sex;
                             this.age=age; }
              public int getAge() {
                             return age;
                      }
                      public void setAge(int age) {
             this.age = age;
              }
                      public String getName() { return name; }
              public void setName(String name) { this.name = name; }
              public String getSex() { return sex; }
                      public void setSex(String sex) { this.sex = sex; }}
                      import java.util.*;
                      public class Student extends Person {
                      private long number;
                      private int phi;
                      private int eng;
                      private int comp;
                      private int[] num;

                      public Student(){};
                      public Student(String name,String sex,int age,long number,int phi,int eng,int comp) {
                                                                                                        super(name,sex,age);
                                                                                                            this.number=number;
                                                                                                                   this.phi=phi;
                                                                                                   this.eng=eng;
                                                                                                   this.comp=comp; }
                      public int getComp() { return comp; }
                      public void setComp(int comp) { this.comp = comp; }
                      public int getEng() { return eng; }
                      public void setEng(int eng) { this.eng = eng; }
                      public long getNumber() { return number; }
                      public void setNumber(long number) { this.number = number; }
                      public int getPhi() { return phi; }
                      public void setPhi(int phi) { this.phi = phi; } //求平均分数
                      public double avg() { return (getPhi()+getEng()+getComp())/3; }
                      public int max() { sort(); return num[num.length-1]; }
                      public int min() { sort(); return num[0]; }
                      private void sort() { num=new int[]{getPhi(),getEng(),getComp()}; Arrays.sort(num); }
                      public String toString() { return "学号："+getNumber()+" 名字："+getName()+" 性别："+getSex()+" 平均分："+avg()+" 最高分："+max()+" 最低分："+min(); }}
                      public class Test {
                             public static void main(String[] args) {
                                    Student s=new Student("张三","男",20,11203,80,70,90);
            
System.out.println(s); }}第22行有错：class。，interface 或enum           import java.util.*;我马上要交的，快独爱帮我改改，我会加分的

Answer 1

供参考:
import java.util.*; //在前面 引入包。class Person { //去掉public
private String name;
private String sex;
private int age; public Person() {
}; public Person(String name, String sex, int age) {
this.name = name;
this.sex = sex;
this.age = age;
} public int getAge() {
return age;
} public void setAge(int age) {
this.age = age;
} public String getName() {
return name;
} public void setName(String name) {
this.name = name;
} public String getSex() {
return sex;
} public void setSex(String sex) {
this.sex = sex;
}
}class Student extends Person {//不要public
private long number;
private int phi;
private int eng;
private int comp;
private int[] num; public Student() {
}; public Student(String name, String sex, int age, long number, int phi,
int eng, int comp) {
super(name, sex, age);
this.number = number;
this.phi = phi;
this.eng = eng;
this.comp = comp;
} public int getComp() {
return comp;
} public void setComp(int comp) {
this.comp = comp;
} public int getEng() {
return eng;
} public void setEng(int eng) {
this.eng = eng;
} public long getNumber() {
return number;
} public void setNumber(long number) {
this.number = number;
} public int getPhi() {
return phi;
} public void setPhi(int phi) {
this.phi = phi;
} // 求平均分数 public double avg() {
return (getPhi() + getEng() + getComp()) / 3;
} public int max() {
sort();
return num[num.length - 1];
} public int min() {
sort();
return num[0];
} private void sort() {
num = new int[] { getPhi(), getEng(), getComp() };
Arrays.sort(num);
} public String toString() {
return "学号：" + getNumber() + " 名字：" + getName() + " 性别：" + getSex()
+ " 平均分：" + avg() + " 最高分：" + max() + " 最低分：" + min();
}
}public class Test {//这个保留。
public static void main(String[] args) {
Student s = new Student("张三", "男", 20, 11203, 80, 70, 90); System.out.println(s);
}
}