ISC and ICSE Board Questions & Answers

1.   What is the significance of WWW? Ans. WWW or World Wide Web allows a huge pool of information (as web pages) to shared by multiple users over a World Wide Network (Internet) and the introduction of Java makes the web pages dynamic and interactive in a secured manner. 2.   What is Browsing? Ans. Browsing over the internet allows surfing through the internet, thus enabling the users to see information in different pages and interact with it. 3.   Name two types of Java programs. 4.   Why is Java choice for the Web? Ans. The introduction of active web pages makes Java an attractive addition to the web page. When we click on a web page containing a Java applet, it is not that we just read it, listen to it, or watch it– we can interact with it. The dynamic, interactive content to the web was brought about by Java: So much so web applications made in Java runs as if it is a computer program installed in the local computer. ...

1.   Give two examples of real-world objects. Also specify their characteristics and behaviour. Ans. Real Life Objects Example1: Object Name:    Pen Characteristics: Company made, Colour, Body Shape and Nip. Behaviour: 1)       Used for writing. 2)       Used for correction 3)       Used for drawing or sketching Example 2: Object Name:      Dog Characteristics: Name, Colour and Breed. Behaviour: 1)       Barking 2)       Wagging its tail 3)       Running speed 2.   What do you understand by state of an object? Explain with an example. Ans. State of an object refers to the condition in which an object is in. Thus the values/attributes of its characteristics is represented For example, a book is an object, which may be either in “ope...

Program 1-  Define a class called Library with the following description: Instance variables/data members: Int acc_num – stores the accession number of the book String title – stores the title of the book stores the name of the author Member Methods: (i) void input() – To input and store the accession number, title and author. (ii)void compute – To accept the number of days late, calculate and display and fine charged at the rate of Rs.2 per day. (iii) void display() To display the details in the following format: Accession Number Title Author Write a main method to create an object of the class and call the above member methods. Solution -  public class Library {     int acc_num;     String title;     String author;     public void input() throws IOException {         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));  ...