Questions about Java methods. Please tell me how to write the following.

package animal;

public class Main {

    public static void main(String[]args) {

        // After creating the method of question 下部 below question の, set your first and last names in the arguments.
        Main.printMyName("Yamada", "Taro");

        // Q2 Store the appropriate values in the variables below.
        String name = pet;
        intage=7;
    }

    // Q3 Instance any animal class under the following conditions and call the appropriate method.
    // 1: Use the local variable created in question 2 for the method argument.
    void show() {
        System.out.println("My name is ""+name+""!"");
    }

    void showAnimal() {
        System.out.println("Here's my pet!");
        Animal animal = new Animal();
    }

    // Q4 Create a printMyName method that outputs your name and the contents of introducing your pet to the console under the conditions 1-3 below.
    //
    // -1. Access qualifier = private
    // -2. Arguments:
    // -2-1. Last Name (Sei)
    // -2-2 First Name (May)
    // -3. Return value = None
    private static void printMyName(String firstName, String lastName) {
        System.out.println("Name is "+fullName(firstName, lastName)+"");
    }
  }
}

package animal;

// Q6 Create any animal class under the following conditions.
// -1: Please refer to [List of Animals and Calls] in the backlog for the target animals.
// -2—Succession of Animal

public class Any animal class name {

    public void Animal() {
        super();
    }

    public void Animal(String name, intage) {
        super(name,age);
    }

⇩

public class Any animal class name extends Animal {

    public Any animal class name (String name, age) {
        super(name,age);
    }

    public class dog extensions Animal {

        public dog(String name, intage) {
            super(name,age);
        }

    // Q7 Create a method to output the animal's cry to the console that matches the class under the following conditions:
    // -1: Please refer to [List of Animals and Calls] in the backlog for the target animal's song.
    // -2. Access Qualifier = Protected
    // -3. Arguments = None
    // -4. Return value = None
    class Dog extensions Animal {
        public void bark() {
            System.out.println("Wow!");
        }
    }
}

package animal;

import java.text.SimpleDateFormat;

public class Animal {

    private String name;
    private age;

    public Animal() {
    }

    public Animal (String name, intage) {
        this.name = name;
        This.age=age;
    }

    protected void setName(String name){
        this.name = name;
    }

    protected void setAge(interage){
        This.age=age;
    }

    protected String getName() {
        return this.name;
    }

    protected int getAge() {
        return this.age;
    }

    protected void introduction() {
        System.out.println("Name is "+this.getName()+"!");

        // Q5 Use Calendar class to obtain birthdays in yyyy/MM/dd format under the following conditions.
        // -1: Calendar class variable name = calendar
        // -2: Display the date "5 months and 15 days after" from the date of execution
        SimpleDateFormat sdf = new SimpleDateFormat("Describe the date format here";
        System.out.println(sdf.format(calendar.getTime())+" to "+this.getAge()+"!");
    }
}