This document defines a class called KBC that simulates the game show "Kaun Banega Crorepati" (Who Wants To Be A Millionaire). The class contains questions, options, answers, prize amounts, a history array to track questions asked, and lifeline booleans. The main method initializes a KBC object, randomly selects questions for the player, allows them to use lifelines if needed, and checks their answer to determine if they win the corresponding prize amount or lose. The game is played in a loop until all questions are answered or the player gets a question wrong.

1. package Games;
import java.util.*;
public class KBC
{
String questions[];
String options[][];
int answers[];
long money[];
int history[];
boolean lifelines[];
static int games=0;
public int getRandomQuestion()
{
int i=(int)((Math.random()*questions.length));
return i;
}
public KBC() //constructor
{
questions=new String[]
{
"Who discovered Uranus? ",
"According to Hindu Mythology, which of these is a
brother of God Krishna ?",
" In the U.S., something traditional is often said to be
"as American as" what?",
"The velocity of light was first measured by",
"Study of life in outer space is known as",
"Oncology is the study of ",
"What was the name of India's first unmanned lunar
spacecraft launched in October 2008?",
"The credit of developing the polio vaccine goes to",
"The scientist who first discovered that the earth
revolves round the sun was",
"Centigrade & Fahrenheit scales give same reading at",
"The unit of energy in MKS system is",
"Which of the following instruments is used to measure
pressure of gases?",
"Where is the headquarters of Microsoft located?",
"'.BAT' extension refers usually to what kind of file?",
"What is the highest score in international test
cricket?",
"What was the overall medal tally for the Indian
contingent at the Glasgow Commonwealth Games 2014?",
"Which of these laws helps specifically in calculating
current in complex circuits with multiple cells?",
"The photoelectric effect was explained effectively by
Einstein on the basis of what?"
};
options=new String[][]
{

2. {"1. Herschel ", "2. Galileo", "3. Copernicus ", "4.
None of these "},
{"1. Ram ", "2. Balram ", "3. Arjun ", "4. Parsuram"},
{"1. Apple Pie ", "2. Franks and Beans ", "3. American
Pie ", "4. Macaroni and cheese "},
{"1. Einstein", "2. Newton ", "3. Romer ", "4. Galileo
"},
{"1. Endobiology ", "2. Exobiology", "3. Enterobiology
", "4. Neobiology "},
{"1. Birds", "2. Cancer", "3. Mammals", "4. Soil"},
{"1. Chandravahaan 1" , "2. Chandrayaan 1 ", "3.
Chandravimaan 1", "4. Chadrakhoj 1"},
{"1. Jonas Salk ", "2. Alb E. Sabin ", "3. Selman
Waksman ", "4. None of these "},
{"1. Newton", "2. Dalton", "3. Copernicus", "4.
Einstein"},
{"1. -40 degree", "2. -32 degree", "3. -273 degree", "4.
-100 degree"},
{"1. Volt", "2. Erg", "3. Ohm", "4. Joule"},
{"1. Barometer ", "2. Manometer ", "3. Saccharimeter ",
"4. Lactometer "},
{"1. Santa Clara, California ", "2. Tucson, Arizona ",
"3. Richmond, Virginia ", "4. Redmond, Washington"},
{"1. Compressed Archive file ", "2. System file ", "3.
Audio file ", "4. Backup file "},
{"1. 333","2. 427","3. 400*","4. 512"},
{"1. 62","2. 58","3. 64","4. 65" },
{"1. Kirchoff's law","2. Coulomb's law","3. Ohm's
law","4. Gauss' theorem"},
{"1. Special relativity","2. Planck's quantum
theory","3. Rutherford's postulates","4. Crystal field theory"}
};
answers=new int[]{1,2,1,3,2,2,2,1,3,1,4,2,4,2,3,3,1,2};
money=new long[]
{1000,3000,5000,10000,25000,50000,75000,100000,250000,500000,1000000
,2500000,5000000,7500000,10000000};
history=new int[18];
lifelines=new boolean[]{false,false,false};
}
public static void main()
{
Scanner sc= new Scanner(System.in);
int choice= 0;
if(games==10)
System.out.println("get a life");
if(games==0)
System.out.println("fWelcome to KBCnn");
System.out.println("Your First Question is :n");
KBC k= new KBC(); //object
int n=0;//no of questions completed
for(int i=0;i<k.questions.length;i++)
{

3. int r;
do
{
r= k.getRandomQuestion();
}while(k.history[r]==1); //loop goes till question is
found which has not been asked yet
System.out.println(k.questions[r]);
System.out.println(k.options[r][0]);
System.out.println(k.options[r][1]);
System.out.println(k.options[r][2]);
System.out.println(k.options[r][3]);
System.out.println("Press 1,2,3 or 4nIf you do not know
the answer enter 0 to use a lifeline");
choice= sc.nextInt();
while(choice>4)
{
System.out.println("Please enter only 0,1,2,3 or
4");
choice=sc.nextInt();
}
if(choice==0)
{
boolean boo=true;
if(k.lifelines[0]==true && k.lifelines[1]==true &&
k.lifelines[2]==true)
boo=false;
if(boo){
System.out.println("Enter 1 to use 50/50nEnter 2 to
ask RajnikanthnEnter 3 to change the question");
int c=sc.nextInt()-1;
while(k.lifelines[c]==true)
{
System.out.println("Sorry you have used this
lifeline. Please choose another by entering the respective
number.");
c=sc.nextInt()-1;
}
k.lifelines[c]=true;
switch(c)
{
case 0:
int rand;
do{
rand=(int)(Math.random()*4);
}while(rand==(k.answers[i]-1));
if(rand<(k.answers[r]-1))
System.out.println("The remaining options
aren"+k.options[r][rand]+"n"+k.options[r][(k.answers[r]-1)]);
else
System.out.println("The remaining options
aren"+k.options[r][(k.answers[r]-1)]+"n"+k.options[r][rand]);
break;

4. case 1:
System.out.println("Rajnikanth says the
answer is "+k.answers[r]);
break;
case 2:
k.history[r]=1;
System.out.println("fYour new question is:
n");
continue;
}
}
else
System.out.println("Sorry you have used all your
lifelines.");
System.out.println("What is your final answer?");
choice=sc.nextInt();
}
n++;
if(choice==k.answers[r])
{
if(n==15)
System.out.println("nCorrect answer
nCONGRATULATIONS!!!YOU ARE A CROREPATI!nYou Won Rs."+k.money[i]
+"nnThanks for playing :)");
else
System.out.println("nCorrect answernYou Won
Rs."+k.money[i]+"n");
}
else
{
System.out.println("nYou LostnnGame Over !!");
if(i>=1)
System.out.println("Your total prize
money :Rs."+k.money[i-1]);
else
System.out.println("Your total prize money :Rs.0");
break;
}
k.history[r]=1; //indicates question is completed
System.out.println("Enter any letter to continue");
String v=sc.next();
System.out.println("f");//refresh feed
}
System.out.println("Do you want to play again?(y/n)");
char c=sc.next().charAt(0);
if(c=='y' || c=='Y')
{
games++;
main();
}
else
System.out.println("Thanks for playing!");
}
}