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Java Programs for ICSE Class 10

1. Write a menu driven program to accept a choice and perform the following:
Choice = 1, accept a number and check whether it is a PRIME NUMBER.
Choice =2, accept a number and check whether it is a AUTOMORPHIC NUMBER
Else display WRONG CHOICE
Answer:
import java.io.*;
class Q2
{
public static void main(String[]args)throws IOException
{
BufferedReader s=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Please Enter Your Choice");
System.out.println("1.Prime Number");
System.out.println("2.Automorphic Number");
String input=s.readLine();
int ch=Integer.parseInt(input);
switch(ch)
{
case 1:
System.out.println("Enter a Number");
String a=s.readLine();
int num=Integer.parseInt(a);
int i;
for(i=2;i<num/2;i++){
}
if(num%i==0)
System.out.println("The number you have entered is not a PRIME NUMBER");
else
System.out.println("The number you have entered is a PRIME NUMBER");
break;
case 2:
System.out.println("Enter a Number");
String a1=s.readLine();
int num1=Integer.parseInt(a1);
int q=(num1*num1)%100;
if(q==num1)
System.out.println("The number you have entered is an AUTOMORPHIC NUMBER");
else
System.out.println("The number you have entered is not an AUTOMORPHIC NUMBER");
break;
default:
System.out.println("WRONG CHOICE !!");
break; } } }

2.Sasha travels pvt ltd gives the following discount to it’s customers:
Ticket Amount
Discount
Above Rs.70000
18%
Rs.55001 to Rs.70000
16%
Rs.35001 to Rs.55000
12%
Rs.25001 to Rs.35000
10%
Less than Rs.25001
2%
Write a program to INPUT the NAME and TICKET AMOUNT for the customer and calculate the discount amount and net amount to be paid in the following format.
   Name   Ticket Charges    Discount      Net Amount

Answer:

class Discount
{
static String name;
static double amnt=0,net_amnt=0,disc=0;
public static void input(String name1,double amt1)
{
name=name1;
amnt=amt1;
}
public static void cal()
{
if(amnt<25001)
{
net_amnt=amnt*2/100;
disc=2;
}
else if(amnt>=25001&&amnt<=35000)
{
net_amnt=amnt*10/100;
disc=10;
}
else if(amnt>=35001&&amnt<=55000)
{
net_amnt=amnt*12/100;
disc=12;
}
else if(amnt>+55001&&amnt<=70000)
{
net_amnt=amnt*16/100;
disc=16;
}
else
{
net_amnt=amnt*18/100;
disc=18;
}
}
public static void display()
{
System.out.println("Name \t Ticket Charges \t Discount \t Net Amount ");
System.out.println(name+" \t   "+amnt+"       \t "+disc+" %  \t      "+net_amnt);
}
public static void main(String[]args)
{
Discount obj=new Discount();
obj.input("QWERTY",3654);
cal();
obj.display();
}
}

3.Write a class to represent a RIGHT ANGLED TRIANGLE. A CONSTRUCTOR should take the length of two shorter sides and calculate the length of the hypotenuse .Include a METHOD to calculate the area of the triangle.
Answer:

class Triangle
{
double ab,bc,ac,area;
Triangle(double ab1,double bc1)
{
ab=ab1;
bc=bc1;
ac=Math.sqrt((ab*ab)+(bc*bc));
System.out.println("The length of Hypotenuse is  "+ac+" "+"units");
}
public void calculate(double ab2,double bc2)
{
ab=ab2;
bc=bc2;
double ac1=Math.sqrt((ab*ab)+(bc*bc));
double s=(ac+ab+bc)/2;
area=Math.sqrt(s*(s-ab)*(s-bc)*(s-ac1));
System.out.println("The Area of triangle is  "+area+" "+"sq units");
}

public static void main(String[]args)
{
Triangle obj=new Triangle(3.0,4.0);
obj.calculate(4.0,1.0);
Triangle obj1=new Triangle(50.0,25.0);
obj1.calculate(10.0,99.0);
}
}

4.Write a program to generate the following series:
(1/1!)+(2/2!)+(3/3!)+(4/4!)+………………………..(n/n!)

Answer:

import java.io.*;

public class nested {

public float factorial(int n)throws IOException
{
float prod=1;
for(int i=1;i<=n;i++)
prod=prod*i;
return prod;
}
public static void main(String[] args)throws IOException
{
BufferedReader s=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the number");
String q=s.readLine();
nested obj = new nested();
int o=Integer.parseInt(q);
float sum=0;
for(int i=1;i<=o;i++)
{
float prod = obj.factorial(i);
sum = sum+(i/prod);
}
System.out.println("The required output : "+sum);
}
}

5.Write a program to accept a number and check whether it is PERFECT NUMBER .

Answer:
import java.io.*;
class Q010
{
public static void cal()throws IOException
{
BufferedReader s=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Please Enter a number : ");
String q=s.readLine();
long num=Long.parseLong(q);
long n=2,lim=num/2,sum=1;
for( n=2;n<=lim;n++)
{
if(num%n==0)
sum=sum+n;
}
if(sum==num)
System.out.println("The number you have entered is a PERFECT NUMBER ");
else
System.out.println("The number you have entered is not a PERFECT NUMBER ");
}
}

6.Write a menu driven program to choose from various categories of cinema hall tickets. After the user selects a category, accept the number of tickets the user wishes to buy.
Display the total cost of the tickets, by calculating as follows:

1.
Lower Stall
Rs.50/-
2.
Upper Stall
Rs.70/-
3.
Balcony
Rs.90/-
4.
Box
Rs.120/-

Answer:
import java.io.*;
class Q12
{
public static void main(String[]args)throws IOException
{
BufferedReader s=new BufferedReader(new InputStreamReader(System.in));

System.out.println("\t?Enter your choice please?");
System.out.println("\t1.Lower Stall \t Rs.50/-");
System.out.println("\t2.Upper Stall \t Rs.70/-");
System.out.println("\t3.Balcony     \t Rs.90/-");
System.out.println("\t4.Box         \t Rs.120/-");
String input=s.readLine();
int ch=Integer.parseInt(input);

switch(ch)
{
case 1:
System.out.println("Please enter the number of tickets");
String d=s.readLine();
int n=Integer.parseInt(d);
int rs=50*n;
System.out.println("Total Amount :Rs. "+rs+"/-");
break;

case 2:
System.out.println("Please enter the number of tickets");
String d1=s.readLine();
int n1=Integer.parseInt(d1);
int rs1=70*n1;
System.out.println("Total Amount :Rs. "+rs1+"/-");
break;

case 3:
System.out.println("Please enter the number of tickets");
String d2=s.readLine();
int n2=Integer.parseInt(d2);
int rs2=90*n2;
System.out.println("Total Amount :Rs. "+rs2+"/-");
break;

case 4:
System.out.println("Please enter the number of tickets");
String d3=s.readLine();
int n3=Integer.parseInt(d3);
int rs3=120*n3;
System.out.println("Total Amount :Rs. "+rs3+"/-");
break;

default:
System.out.println("Wrong Choice !!");
break;
}
}
}

7.Write a program to create a class BANK, which have the following:
Member variables:
Account Number
Account holder’s name
Balance Amount

The class should have the following member functions:
A parameterized and a non parameterized constructor.
A function to update the balance amount on deposit of amount.
A function to update the balance amount on deposit of amount.
A function to display all the values.
Call all the above functions from the main() function.

Answer:

class Bank
{
String name;
long accno; String accType;
double bal; public Bank()
{
name=""; accno=0;
accType=""; bal=0;
}
public Bank(String name1,long accno1,String accType1,double bal1)
{
name=name1; accno=accno1;
accType=accType1; bal=bal1;
}
public void initialize(String name1,long accno1,String accType1,double bal1)
{
name=name1; accno=accno1;
accType=accType1; bal=bal1;
}
public void deposit(double amnt)
{
bal= bal+amnt;
}
public void withdraw(double amnt)
{
if(amnt<=bal)
bal=bal-amnt;
}
public void display()
{
System.out.println("NAME            "+name);
System.out.println("ACCOUNT NUMBER  "+accno);
System.out.println("ACCOUNNT TYPE   "+accType);
System.out.println("BALANCE         "+bal);
}
public static void main()
{
Bank obj=new Bank("Bennington",654165465,"Savings",10);
obj.deposit(200); obj.withdraw(10);
obj.display();
obj.initialize("Albert Einstein",654165465,"Savingssdf",200); obj.deposit(100);
obj.withdraw(200);
obj.display();
}
}

8.Write a program to input any given String. Calculate the total number of digits, vowels and other characters present in the String.

Answer:

import java.io.*;
class string_parser
{
public static void main(String[] args)throws IOException
{
BufferedReader s=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Please Enter a String value ");
String a=s.readLine();
int q=a.length();
a.toLowerCase();
int vowel=0,consonant=0,digit=0, other=0;
for(int i=0;i<q;i++){
if(a.charAt(i)== 'a'||a.charAt(i)== 'e'||a.charAt(i)== 'i'||a.charAt(i)== 'o'|| a.charAt(i)== 'u' )
    vowel++;
else if(a.charAt(i)== '0'||a.charAt(i)== '1'||a.charAt(i)== '2'||a.charAt(i)== '3'|| a.charAt(i)== '4'||a.charAt(i)== '5'|| a.charAt(i)== '6'||a.charAt(i)== '7'|| a.charAt(i)== '8' ||a.charAt(i)== '9')   
    digit++;
else if(a.charAt(i)!=' ')
    consonant++;
  else
  other++;
}
 System.out.println("Number of Vowels: "+vowel);  
 System.out.println("Number of Consonants: "+consonant);  
 System.out.println("Number of digits: "+digit);
 System.out.println("Number of other characters: "+other);
}
}

9.Define a class STUDENT described as below:
Data members:
Name, Age, m1, m2, m3 (marks in 3 subjects) max, avg.
Member methods:
a. A parameterized constructor to initialize the data members.
b. To accept the details of a student.
c. To compute the average and the maximum out of 3 marks.
d. To display the name, age, marks in 3 subjects, max and avg.

Answer:

import java.io.*;
class Student
{
String Name;
int age;
double m1,m2,m3,max=9.0,avg=7.0;
public Student(String Name1,int age1,double ma1,double ma2,double ma3)
{
 Name=Name1;
 age=age1;
 m1=ma1;m2=ma2;m3=ma3;max=0.0;avg=0.0;
 cal();
}
public void details(String Name2,int age2,double maa1,double maa2,double maa3)
{
 Name=Name2;
 age=age2;
 m1=maa1;m2=maa2;m3=maa3;
}
public void cal()
{
avg=(m1+m2+m3)/3;
max=Math.max(m1,(Math.max(m2,m3)));
System.out.println("A:"+max);
System.out.println("B:"+avg);
}
public void display()
{
System.out.println("Name          : "+Name);
System.out.println("Age           : "+age);
System.out.println("Marks 1       : "+m1);
System.out.println("Marks 2       : "+m2);
System.out.println("Marks 3       : "+m3);
System.out.println("Maximum marks : "+max);
System.out.println("Average       : "+avg+"\n");
}
public static void main(String[]args)
{
Student obj=new Student("Eminem ",15,95,80,79);
obj.display();
obj.details("Marshall Mathers ",15,99,98,100);
obj.cal();
obj.display();
}

}

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