exercise | exercise for nndl

	public class BookRunner {
		public static void main(String[] args) {
			Book taocp = new Book(100);
			taocp.setTitle("The Art Of Computer Programming");
			
			Book ej = new Book(75);
			ej.setTitle("Effective Java");
			
			Book cc = new Book(60)  

	package com.in28minutes.oops.level2.inheritance;

	public class Person {
		private String name;
		private String email;
		private String phoneNumber;

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

		public String getName() {
			ret  

	Student student - new Student(name, list-of-marks);
	int number = student.getNumberOfmarks();
	int sum = student.getTotalSumOfMarks();
	int maximumMark = student.getMaximumMark();
	int minimumMark = student.getMinimumMark();
	BigDecimal average = s  

function findExercise(id, chapter) {
    let parts = id.split(".")
    if (!chapter) chapter = getChapter(parts[0])
    for (let i = 0; i < chapter.exercises.length; i++)
      if (chapter.exercises[i].number == +parts[1])
        return chapter.e