The second process of assessment

Code Cloud link Address: https://gitee.com/wsh971126/codes

First question

(1) Title:

Defines a student class for students, containing class member variables: string name, string sex, int age, and all variables must be private.

(2) Code:

Import Java.util.Scanner;
Class student{
String Name,sex;
int age;
Private String GetName () {
return name;
}
private void SetName (String name) {
This.name=name;
}
Private String Getsex () {
return sex;
}
private void Setsex (String Sex) {
This sex=sex;
}
private int getage () {
return age;
}
private void Setage (int age) {
This.age=age;
}
Student (String name,string sex,int age) {
This.name=name;
This sex=sex;
This.age=age;
}
public class main{
public static void Main (string[] args) {
Scanner in = new Scanner (system.in);
String n,s;
int A;
N=in.next ();
A=in.nextint ();
S=in.next ();
Student student= New Student (n,s,a);
System.out.println ("Student [name=" +student.name+ ", sex=" +student.sex+ ", age=" +student.age+ "]")
}
}
}

(3) Program design ideas:

Introduce Java input functions, define the student class, define the student method, define the ToString method, and output the class name [Name=, sex=, age=] in the format, and finally call the subclass.

Knowledge points involved: subclasses and inheritance

(4) Output result:

Student [name= ' Tom ', sex= ' male ', age=15]

Second question

(1) Title:

Please add the following code to complete the output requirements. (Note: Complete code is required)

(2) Code:

Import Java.util.Scanner;
public class Main {
public static void Main (string[] args) {
Scanner in = new Scanner (system.in);
int a,b,c,d,e;
A = In.nextint ();
b = In.nextint ();
c = In.nextint ();
D = In.nextint ();
E = In.nextint ();
RR rr = new RR ();
Double dd = rr.fun (a,b,c,d,e);
System.out.printf ("%.2f", DD);
}
}
Class rr{
public int Fun (int a,int b,int c,int d,int e) {
Return (a+b+c+d+e)/5;
}

}

(3) Program design ideas:

The RR class is defined first, and then the average is written when the return outgoing value is returned.

(4) Output result:

3.00

Third question

(1) Title:

Procedural blanks. Refine the code below as required by the topic. Please submit the full code. If the height of a block is larger than the width, we say it is upright, otherwise we say it is flat. Read into the height and width of a block of wood. If it is flat, then output a, otherwise output B.

(2) Code: didn't do it.

Question Fourth

(1) Title:

The program changes the wrong question. There is an error in the following code, please submit it after modification.

(2) Code:

public class Main {
public static void Main (string[] args) {
Animal Animal = new Dog ();
Animal.shout ();
Animal.run ();
}
}

Class Animal {
void Shout () {
System.out.println ("Animal shout! ");
}

public void Run () {

}
}

Class Dog extends Animal {
void Shout () {
Super.shout ();
System.out.println ("Wangwang ...");
}

public void Run () {
System.out.println ("Dog is running");
}
}

(3) Involving knowledge points: inheritance of subclasses

(4) Output result:

  animal shout！

  wangwang……

  Dog is running

First question

(1) Title:

Defines a student class for students, containing class member variables: string name, string sex, int age, and all variables must be private.

(2) Code:

Import Java.util.Scanner;
Class student{
String Name,sex;
int age;
Private String GetName () {
return name;
}
private void SetName (String name) {
This.name=name;
}
Private String Getsex () {
return sex;
}
private void Setsex (String Sex) {
This sex=sex;
}
private int getage () {
return age;
}
private void Setage (int age) {
This.age=age;
}
Student (String name,string sex,int age) {
This.name=name;
This sex=sex;
This.age=age;
}
public class main{
public static void Main (string[] args) {
Scanner in = new Scanner (system.in);
String n,s;
int A;
N=in.next ();
A=in.nextint ();
S=in.next ();
Student student= New Student (n,s,a);
System.out.println ("Student [name=" +student.name+ ", sex=" +student.sex+ ", age=" +student.age+ "]")
}
}
}

(3) Program design ideas:

Introduce Java input functions, define the student class, define the student method, define the ToString method, and output the class name [Name=, sex=, age=] in the format, and finally call the subclass.

Knowledge points involved: subclasses and inheritance

(4) Output result:

Student [name= ' Tom ', sex= ' male ', age=15]

Second question

(1) Title:

Please add the following code to complete the output requirements. (Note: Complete code is required)

(2) Code:

Import Java.util.Scanner;
public class Main {
public static void Main (string[] args) {
Scanner in = new Scanner (system.in);
int a,b,c,d,e;
A = In.nextint ();
b = In.nextint ();
c = In.nextint ();
D = In.nextint ();
E = In.nextint ();
RR rr = new RR ();
Double dd = rr.fun (a,b,c,d,e);
System.out.printf ("%.2f", DD);
}
}
Class rr{
public int Fun (int a,int b,int c,int d,int e) {
Return (a+b+c+d+e)/5;
}

}

(3) Program design ideas:

The RR class is defined first, and then the average is written when the return outgoing value is returned.

(4) Output result:

3.00

Third question

(1) Title:

Procedural blanks. Refine the code below as required by the topic. Please submit the full code. If the height of a block is larger than the width, we say it is upright, otherwise we say it is flat. Read into the height and width of a block of wood. If it is flat, then output a, otherwise output B.

(2) Code: didn't do it.

Question Fourth

(1) Title:

The program changes the wrong question. There is an error in the following code, please submit it after modification.

(2) Code:

public class Main {
public static void Main (string[] args) {
Animal Animal = new Dog ();
Animal.shout ();
Animal.run ();
}
}

Class Animal {
void Shout () {
System.out.println ("Animal shout! ");
}

public void Run () {

}
}

Class Dog extends Animal {
void Shout () {
Super.shout ();
System.out.println ("Wangwang ...");
}

public void Run () {
System.out.println ("Dog is running");
}
}

(3) Involving knowledge points: inheritance of subclasses

(4) Output result:

  animal shout！

  wangwang……

  Dog is running

First question

(1) Title:

Defines a student class for students, containing class member variables: string name, string sex, int age, and all variables must be private.

(2) Code:

Import Java.util.Scanner;
Class student{
String Name,sex;
int age;
Private String GetName () {
return name;
}
private void SetName (String name) {
This.name=name;
}
Private String Getsex () {
return sex;
}
private void Setsex (String Sex) {
This sex=sex;
}
private int getage () {
return age;
}
private void Setage (int age) {
This.age=age;
}
Student (String name,string sex,int age) {
This.name=name;
This sex=sex;
This.age=age;
}
public class main{
public static void Main (string[] args) {
Scanner in = new Scanner (system.in);
String n,s;
int A;
N=in.next ();
A=in.nextint ();
S=in.next ();
Student student= New Student (n,s,a);
System.out.println ("Student [name=" +student.name+ ", sex=" +student.sex+ ", age=" +student.age+ "]")
}
}
}

(3) Program design ideas:

Introduce Java input functions, define the student class, define the student method, define the ToString method, and output the class name [Name=, sex=, age=] in the format, and finally call the subclass.

Knowledge points involved: subclasses and inheritance

(4) Output result:

Student [name= ' Tom ', sex= ' male ', age=15]

Second question

(1) Title:

Please add the following code to complete the output requirements. (Note: Complete code is required)

(2) Code:

Import Java.util.Scanner;
public class Main {
public static void Main (string[] args) {
Scanner in = new Scanner (system.in);
int a,b,c,d,e;
A = In.nextint ();
b = In.nextint ();
c = In.nextint ();
D = In.nextint ();
E = In.nextint ();
RR rr = new RR ();
Double dd = rr.fun (a,b,c,d,e);
System.out.printf ("%.2f", DD);
}
}
Class rr{
public int Fun (int a,int b,int c,int d,int e) {
Return (a+b+c+d+e)/5;
}

}

(3) Program design ideas:

The RR class is defined first, and then the average is written when the return outgoing value is returned.

(4) Output result:

3.00

Third question

(1) Title:

Procedural blanks. Refine the code below as required by the topic. Please submit the full code. If the height of a block is larger than the width, we say it is upright, otherwise we say it is flat. Read into the height and width of a block of wood. If it is flat, then output a, otherwise output B.

(2) Code: didn't do it.

Question Fourth

(1) Title:

The program changes the wrong question. There is an error in the following code, please submit it after modification.

(2) Code:

public class Main {
public static void Main (string[] args) {
Animal Animal = new Dog ();
Animal.shout ();
Animal.run ();
}
}

Class Animal {
void Shout () {
System.out.println ("Animal shout! ");
}

public void Run () {

}
}

Class Dog extends Animal {
void Shout () {
Super.shout ();
System.out.println ("Wangwang ...");
}

public void Run () {
System.out.println ("Dog is running");
}
}

(3) Involving knowledge points: inheritance of subclasses

(4) Output result:

  animal shout！

  wangwang……

  Dog is running

The second process of assessment