Suppose Person also has a no‑argument constructor that sets name = “Unknown”. Write a Student no‑arg constructor that:·         Calls the no‑arg superclass constructor.·         Sets gpa to 0.0. public class Person {    private String name;        public Person() {        this.name = “Unknown”;    }     public Person(String name) {        this.name = name;    }     public String getName() {        return name;    }}public class Student extends Person {    private double gpa;     public Student(String name, double gpa) {        super(name);        this.gpa = gpa;    }     public double getGpa() {        return gpa;    }}

In Java, the process of writing an object’s state to a file is called [BLANK-1], and reading it back into memory is called [BLANK-2].

21.   Define a simple class Course with: ·         Private fields: String name, int credits. ·         A constructor Course(String name, int credits). ·         Getter methods for both fields.

Write a Java statement that creates an ArrayList of Double named measurements and adds the value 3.14 to it.Show all work and proper Java syntax.

Which of the following are true about inheritance in Java?

Can constructors be overloaded with the same parameter types but different order?

Write a for loop that computes and prints the sum of the integers from 1 to 100 (inclusive). Show all work and proper Java syntax.

A subclass “is-a” specialized version of its superclass.

Consider int[] nums = { 2, 4, 6, 8 };int sum = 0;for (int i = 0; i < nums.length; i++) {sum += nums[i];}System.out.println(sum); What is printed?

Define a subclass named SavingsAccount that extends BankAccount. public class BankAccount {    private double balance;     public BankAccount(double initialBalance) {        balance = initialBalance;    }     public double getBalance() {        return balance;    }     public void deposit(double amount) {        balance += amount;    }}Requirements:Adds a private double field interestRateA constructor that takes initialBalance and interestRate, calls the superclass constructor to set the balance, and initializes interestRateA method applyMonthlyInterest that adds one month of interest to the balance. Assume interestRate is annual (e.g., 0.06 for 6% per year).Use a simple formula based on 12 months.