icse computer application solved programs chapter

ICSE COMPUTER APPLICATION

SOLVED PROGRAMS

CHAPTER: CONDITIONAL STATEMENT

Program1.Write a program to input 2 numbers and check which is the greatest

between two numbers.

import java.util.Scanner;

public class Great

{

public static void main(String args[])

{

Scanner sc=new Scanner (System.in);

int a,b;

System.out.println("enter 1st nos:");

a=sc.nextInt();

System.out.println("enter 2nd nos:");

b=sc.nextInt();

if(a>b)

{

System.out.println("a is greatest");

}

else

{

System.out.println("b is greatest");

}

}}

Program 2. Write a program to input three unequal and display the second

smallest number.


public class Smallest

{


{

Scanner in=new Scanner(System.in);

int a,b,c;

System.out.println("Enter three numbers");

a=in.nextInt();

b=in.nextInt();

c=in.nextInt();

if (a<b)

{

if(b<c)

System.out.println("The second smallest number:"+b);

else

System.out.println("The second smallest number:"+c);

}

if(b<c)

{

if(c<a)

System.out.println("The second smallest number:"+c);

else

System.out.println("The second smallest number:"+a);

}

if(c<a)

{

if(a<b)

System.out.println("The second smallest number:"+a);

else

System.out.println("The second smallest number:"+b);

}}}

Program 3. Write a program to enter three numbers and a character.

Find and display sum of the numbers if the given character is ’s’ and product of

the numbers if the given character is 'p'. The program displays a message "Invalid

Character" if the user enters a letter other than 's' or 'p'.

import java.util.*;

public class Numbers

{

public static void main (String args[])

{Scanner sc=new Scanner(System.in);

int a,b,c,sum=0,pr=0;

char ch;

System.out.println("Enter three numbers");

a=sc.nextInt();

b=sc.nextInt();

c=sc.nextInt();

System.out.println("Enter 's' for sum and 'p' for product of three numbers");

ch=sc.next().charAt(0);

if(ch=='s')

{

sum=a+b+c;

System.out.println("The sum of three numbers:"+sum);

}

else if (ch=='p')

{

pr=a*b*c;

System.out.println("The product of three numbers:"+pr);

}

else

System.out.println("Entered an invalid character!!!");

}}

Program 4. Write a program to accept a mark obtained by a student in

computer science and print the grades accordingly:

Marks Grade

Above 90 A

70 to 89 B

50 to 69 C

below 50 D

import java.util.*;

class grade

{

public static void main(String args[]){

Scanner sc=new Scanner(System.in);

System.out.println("enter marks");

int m=sc.nextInt();

if (m>=90)

System.out.println("Grade=A");

else if (m>=70)

System.out.println("Grade=B");

else if (m>=50)

System.out.println("Grade=C");

else

System.out.println("Grade=D");

}

}

Program 5. Write a program to input three integers and check whether it forms a

Pythagorean triplet or not. A set of three integers is said to be a Pythagoren triplet

if the sum of the squares of any two integers is equal to square of the third

integer. Example, (3, 4, 5), (5, 12, 13), and (7, 24, 25).

import java.util.*;

class P_Tpriplet

{

public static void main()

{

int a,b,c;


System.out.println("Enter 3 integers");

a=sc.nextInt();

b=sc.nextInt();

c=sc.nextInt();

if (a*a==b*b+c*c || b*b==a*a+c*c || c*c==a*a+b*b)

System.out.println("Pythagorean Triplet");

else

System.out.println("Not a Pythagorean triplet");

}}

Program 6. Write a program to input three angles of a triangle and check whether

a triangle is possible or not. If possible then check whether it is an acute-angled

triangle, right-angled or an obtuse-angled triangle otherwise, display 'Triangle

not possible'.

Sample Input: Enter three angles: 40, 50, 90

Sample Output: Right=angled Triangle


public class TriangleAngle1

{

public static void main(String args[]) {

Scanner in = new Scanner(System.in);

System.out.print("Enter first angle: ");

int a1 = in.nextInt();

System.out.print("Enter second angle: ");


System.out.print("Enter third angle: ");


int Sum = a1 + a2 + a3;

if (Sum == 180 && a1 > 0 && a2 > 0 && a3 > 0) {

if (a1 < 90 && a2 < 90 && a3 < 90) {

System.out.println("Acute-angled Triangle");

}

else if (a1 == 90 || a2 == 90 || a3 == 90) {

System.out.println("Right-angled Triangle");

}

else if(a1>90&&a1<180||a2>90&&a2<180||a3>90&&a3<180)

{

System.out.println("Obtuse-angled Triangle");

}

}

else {

System.out.println("Triangle not possible");

}

}

}

Program 7. Write a program to input year and check whether it is:

(a) a Leap year (b) a Century Leap year (c) a Century year but not a Leap year

Century years are NOT leap years UNLESS they can be evenly divided by 400.

(For example, 1700, 1800, and 1900 were not leap years, but 1600 and 2000,

which are divisible by 400, were.)

Sample Input: 2000

Sample Output: It is a Century Leap Year.


public class LeapYear

{



System.out.print("Enter the year to check: ");

int yr = in.nextInt();

if (yr % 4 == 0 && yr % 100 != 0)

System.out.println("It is a Leap Year");

else if (yr % 400 == 0)

System.out.println("It is a Century Leap Year");

else if (yr % 100 == 0)

System.out.println("It is a Century Year but not a Leap Year");

else

System.out.println("It is neither a Century Year nor a Leap Year");

}

}

Program 8. Write program to accept the number of days and display it after

Converting into number of years, number of months and number of days

import java.util.*;

class Day

{

public static void main(String arg[])

{


System.out.println("enter no. of days");

int a=sc.nextInt();

int y=a/365;

int b=a%365;

int m=b/30;

int days=b%30;

System.out.println("no of year="+y);

System.out.println("no of month="+m);

System.out.println("no of days="+days);

}

}

Program 9 .An Electricity Company charges their consumers according to the

units consumed per month

According to the given traffic:

Units Consumed Charges

Up to 100 units Rs. 2 per unit

More than 100 units and up to 200 units Rs. 1.80 per unit

More than 200 units Rs.1.50 per unit

In addition to the above, every consumer has to pay Rs.200 as Service Charge

per month. Write a program to input the amount of units consumed and

calculate the total charges payable (Bill) by the consumer.

import java.util.*;

class electricity_bill

{


{

int u;double c=0.0;double tc=0.0;


System.out.println("Enter unit");

u=sc.nextInt();

if (u<=100){

c=2*u;}

else if (u>100&&u<=200){

c=100*2+(u-100)*1.8;}

else if(u>200){

c=100*2+100*1.8+(u-200)*1.50;}

tc=200+c;

System.out.println("Amount Payable="+tc);

}

}

Program 10. Write a program to accept a number and check whether the

number is divisible by 3 as well as 5. Otherwise, decide:

(a) Is the number divisible by 3 and not by 5?

(b) Is the number divisible by 5 and not by 3?

(c) Is the number neither divisible by 3 nor by 5?

The program displays the message accordingly.


public class Divisor

{



System.out.print("Enter number: ");

int num = in.nextInt();

if (num % 3 == 0 && num % 5 == 0)

System.out.println("Divisible by 3 and 5");

else if (num % 3 == 0)

System.out.println("Divisible by 3 but not by 5");

else if (num % 5 == 0)

System.out.println("Divisible by 5 but not by 3");

else

System.out.println("Neither divisible by 3 nor by 5");

}

}

Program 11. A cloth showroom has announced festival discounts and the gifts on

the purchase of items, based on the total cost as given below:

Total Cost Discount Gift

Up to Rs. 2,000 5% Calculator

Rs 2,001 to Rs. 5,000 10% School Bag

Rs.5,001 to Rs. 10,000 15% Wall Clock

Above Rs 10,000 20% Wrist Watch

Write a program to input the total cost. Compute and display the amount

to be paid by the customer along with the gift.

import java.util.Scanner

public class Cloth_Discount

{


{


System.out.print("Enter total cost: ");

double cost = in.nextDouble();

String gift;

double amt;

if (cost <= 2000.0)

{

amt = cost - (cost * 5.0 / 100.0);

gift = "Calculator";

}

else if (cost <= 5000.0)

{

amt = cost - (cost * 10.0 / 100.0);

gift = "School Bag";

}

else if (cost <= 10000.0) {

amt = cost - (cost * 15.0 / 100.0);

gift = "Wall Clock";

}

else if(cost>10000) {

amt = cost - (cost * 20.0 / 100.0);

gift = "Wrist Watch";

}

System.out.println("Amount to be paid: " + amt);//printing statement of

amount

System.out.println("Gift: " + gift);//printing the gift item

}

}

Program 12. Write a program to input the cost price and the selling price of an

article.

If the selling price is more than the cost price then calculate and display actual

profit and profit %. Otherwise calculate and display actual loss and loss %.

If the cost price and the selling price are equal, then display the message

“Neither profit nor loss”.

import java.util.*;

class Cp_Sp{

public static void main(String args[]){

Scanner sc=new Scanner (System.in);

System.out.print("Cost Price = ");

double cp = sc.nextDouble();

System.out.print("Selling Price = ");

double sp = sc.nextDouble();

if(sp == cp)

System.out.println("Neither profit nor loss.");

else if(sp > cp){

double profit = sp - cp;

double pp = profit / cp * 100;

System.out.println("Profit = " + profit);

System.out.println("Profit % = " + pp);

}

else{

double loss = cp - sp;

double lp = loss / cp * 100;

System.out.println("Loss = " + loss);

System.out.println("Loss % = " + lp);

}

}

}

Program 13. Write a program to input two unequal positive numbers and check

whether

They are perfect square numbers or not. If the user enters a negative number

then the program displays the message 'Square root of a negative number can't

be determined'.

Sample Input: 81, 100

Sample Output: They are perfect square numbers.

Sample Input: 225, 99

Sample Output: 225 is a perfect square number.

99 is not a perfect square number.


public class Perf_Square

{



System.out.print("Enter first number: ");

int a = in.nextInt();

System.out.print("Enter second number: ");

int b = in.nextInt();

if (a < 0 || b < 0) {

System.out.println("Square root of a negative number can't be

determined");

}

else {

double sq1 = Math.sqrt(a);

double sq2= Math.sqrt(b);

double perfect1= sq1- Math.floor(sq1);

double perfect2= sq2 - Math.floor(sq2);

if (perfect1 == 0 && perfect2== 0) {

System.out.println("They are perfect square numbers.");

}

else {

System.out.println("Both are not perfect square numbers.");

}

}

}

}

Program 14. A pre-paid taxi charges from the passenger as per the tariff given

below:

DISTANCE RATE

Up to 5 km Rs. 100

For the next 10 km Rs. 10 / km

For the next 10 km Rs. 8 / km

More than 25 km Rs. 5 / km

Write a program to input the distance covered and calculate the

Amount paid by the passenger.

The program displays the printed bill with the details given below:

Taxi No. ________

Distance covered ________

Amount ________

import java.util.*;

class Taxi

{


{

int num, d;

double amt = 0.0;


System .out.println("enter the taxi no, distance:");

num=sc.nextInt();

d=sc.nextInt();

if(d <= 5)

amt = 100.0;

else if(d <= 15)

amt = 100.0 + (d - 5) * 10;

else if(d <= 25)

amt = 200.0 + (d - 15) * 8;

else if(d>25)

amt = 280.0 + (d - 25) * 5;

System.out.println("Taxi No: " + num);

System.out.println("Distance covered: " + d);

System.out.println("Amount: " + amt);

}

}

Program 15. A courier company charges differently for “ORDINARY” Booking

and

“EXPRESS” Booking based on the weight of the parcel as per the tariff given up

Weight Ordinary Booking Express booking

up to 100 gm Rs.80 Rs.100

101 gm to 500 gm Rs.150 Rs.200

501 gm to 1000 gm Rs.210 Rs.250

more than 1000 gm Rs.250 Rs.300

Write a program to input weight of a parcel and type of

booking (‘O’ for ordinary and ’E ‘ for Express ). Calculate and print the charges

accordingly.

import java.util.*;

class CourierCompany

{


{


System.out.println("Enter the weight of parcel");

int w = sc.nextInt();

System.out.println("Enter the type of booking" + "\n 1: O for Ordinary"

+ "\n 2: E for Express");

char t = sc.next().charAt(0);

int c=0;

if(t == 'O')

{

if(w<=100)

c=80;

else if(w>=101 && w<=500)

c=150;

else if(w>=501 && w<=1000)

c=210;

else if(w>1000)

c=250;

}

else if(t == 'E')

{

if(w<=100)

c=100;

else if(w>=101 && w<=500)

c=200;

else if(w>=501 && w<=1000)

c=250;

else if(w>1000)

c=300;

}

System.out.print("Charges = Rs " + c);

}

}

Program 16. Given below is a hypothetical table showing rate of income tax for

an India citizen, who is below or up to 60 years.

Taxable income (TI) in Rs. Income Tax in Rs.

Up to Rs. 2,50,000 Nil

More than Rs. 2,50,000 and less than or

equal to Rs. 5,00,000 (TI - 1,60,000) * 10%

More than Rs. 5,00,000 and less than or

equal to Rs. 10,00,000 (TI - 5,00,000) * 20% + 34,000

More than Rs. 10,00,000 (TI - 10,00,000) * 30% + 94,000

Write a program to input the name, age and taxable income of a person.

If the age is more than 60 years then display the message "Wrong Category".

If the age is less than or equal to 60 years then compute and display the income

tax payable along with the name of tax payer, as per the table given above.


public class IncomeTax_11

{



System.out.print("Enter Name: ");

String name = in.nextLine();

System.out.print("Enter age: ");

int age = in.nextInt();

System.out.print("Enter taxable income: ");

double ti = in.nextDouble();

double tax = 0.0;

if (age > 60) {

System.out.print("Wrong Category");

}

else {

if (ti <= 250000)

tax = 0;

else if (ti <= 500000)

tax = (ti - 160000) * 10.0 / 100.0;

else if (ti <= 1000000)

tax = 34000 + ((ti - 500000) * 20.0 / 100.0);

else

tax = 94000 + ((ti - 1000000) * 30 / 100);

}

System.out.println("Name: " + name);

System.out.println("Tax Payable: " + tax);

}

}

Program 17. A company announces revised Dearness Allowance (DA) and

Special Allowances (SA) for their employees as per the tariff given below:

Basic Dearness Allowance (DA) Special Allowance (SA)

Up to ₹ 10,000 10% 5%

₹ 10,001 - ₹ 20,000 12% 8%

₹ 20,001 - ₹ 30,000 15% 10%

₹ 30,001 and above 20% 12%

Write a program to accept name and Basic Salary (BS) of an employee. Calculate

and display gross salary.

Gross Salary = Basic + Dearness Allowance + Special Allowance

Print the information in the given format:

Name Basic DA Spl. Allowance Gross Salary

xxx xxx xxx xxx xxx


public class SalaryBasic

{



System.out.print("Enter name: ");


System.out.print("Enter basic salary: ");

double bs = in.nextDouble();

double da = 0.0, sa = 0.0;

if (bs <= 10000){

da = bs * 10.0 / 100.0;

sa = bs * 5.0 / 100.0;

}

else if (bs <= 20000){

da = bs * 12.0 / 100.0;

sa = bs * 8.0 / 100.0;

}

else if (bs <= 30000){

da = bs * 15.0 / 100.0;

sa = bs * 10.0 / 100.0;

}

else{

da = bs * 20.0 / 100.0;

sa = bs * 12.0 / 100.0;

}

double gs = bs + da + sa;

System.out.println("Name\tBasic\tDA\tSpl. Allowance\tGross Salary");

System.out.println(name + "\t" + bs + "\t" + da + "\t" + sa + "\t" + gs);

}

}

Program 18. Mr. Kumar is an LIC agent. He offers discount to his policy holders

on

the annual premium. However, he also gets commission on the sum assured as

per the given tariff.

Sum Assured Discount Commission

Up to Rs. 1,00,000 5% 2%

Rs. 1,00,001 and up to Rs. 2,00,000 8% 3%

Rs. 2,00,001 and up to Rs. 5,00,000 10% 5%

More than Rs. 5,00,000 15% 7.5%

Write a program to input name of the policy holder, the sum assured and first

annual premium. Calculate the discount of the policy holder and the

commission of the agent. The program displays all the details as:

Name of the policy holder :

Sum assured :

Premium :

Discount on the first premium :

Commission of the agent :


public class Lic_premium

{



System.out.print("Enter Name: ");


System.out.print("Enter Sum Assured: ");

double sum = in.nextDouble();

System.out.print("Enter First Premium: ");

double pre = in.nextDouble();

double disc = 0.0, comm = 0.0;

if(sum <= 100000){

disc = pre * 5.0 / 100.0;

comm = sum * 2.0 / 100.0;

}

else if(sum >=100001&& sum<= 200000){

disc = pre * 8.0 / 100.0;

comm = sum * 3.0 / 100.0;

}

else if(sum <= 500000){

disc = pre * 10.0 / 100.0;

comm = sum * 5.0 / 100.0;

}

else if (sum>500000){

disc = pre * 15.0 / 100.0;

comm = sum * 7.5 / 100.0;

}

System.out.println("Name of the policy holder: " + name);

System.out.println("Sum assured: " + sum);

System.out.println("Premium: " + pre);

System.out.println("Discount on the first premium: " + disc);

System.out.println("Commission of the agent: " + comm);

}

}

Program 19. An employee wants to deposit certain sum of money under

“Term Deposit” scheme in Syndicate Bank.

The bank has provided the tariff of the scheme which is given below:

NO. OF DAYS RATE OF INTERES NO. OF DAYS RATE OF INTEREST

Up to 180 days 5.5% Exact 365 days 9.0%

181 to 364 days 7.5% More than 365 days 8.5%


public class Term_Depo

{



System.out.print("Enter sum of money: ");

double sum = in.nextDouble();

System.out.print("Enter number of days: ");

int days = in.nextInt();

double interest = 0.0; double amt=0.0;

if (days <= 180)

interest = sum * 5.5 / 100.0;

else if (days <= 364)

interest = sum * 7.5 / 100.0;

else if (days == 365)

interest = sum * 9.0 / 100.0;

else

interest = sum * 8.5 / 100.0;

amt = sum + interest;

System.out.print("Maturity Amount = " + amt);

}

}

Program 20 Electronic world' has announced an off-Season discount on the

purchase of certain items as per the given bellow

Amount Discount on A/C Discount on LCD TV

up to Rs. 20,000 5% 2.5%

Rs. 20,001 - Rs. 40,000 7.5% 5%

Rs. 40,001 - Rs. 60,000 10% 7%

more than Rs. 60,000 12% 8.5%


public class Discount

{


{


int p,k;

double d=0,rp,np,tax;

String name;

System.out.println("Enter name of the customer");

name=in.next();

System.out.println("Enter your choice");

k=in.nextInt();

if(k==1)

{

System.out.println("Enter the amount of purchase");

p=in.nextInt();

if(p<=20000)

d=p*5.0/100.0;

if(p>20000 && p<=40000)

d=p*7.5/100.0;

if(p>40000 && p<=60000)

d=p*10.0/100.0;

if(p>60000)

d=p*12.0/100.0;

rp=p-d;

tax=rp*12.5/100.0;

np=rp+tax;

System.out.println("Customer's name:"+name);

System.out.println("The price of the product:Rs."+p);

System.out.println("The discount:Rs"+d);

System.out.println("The tax:Rs."+tax);

System.out.println("The amount to be paid:Rs."+np);

}

if(k==2)

{

System.out.println("enter the amount of purchase");

p=in.nextInt();

if(p<=20000)

d=p*2.5/100.0;

if (p>20000 && p<=40000)

d=p*5.0/100.0;

if (p>40000 && p<60000)

d=p*7.0/100.0;

if(p<=60000)

d=p*8.5/100.0;

rp=p-d;

tax=rp*12.5/100.0;

np=rp+tax;

System.out.println("Customer's name:"+name);

System.out.println("The price of the product:Rs."+p);

System.out.println("The tax:Rs."+tax);

System.out.println("the amount to be paid:Rs."+np);

}}}

icse computer application solved programs chapter

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