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16. Write a program to display total surface area of cylinder.17. Write a program to display total surface area of cuboid / box.18. Write a program to display area and perimeter of rectangle.19. Write a program to display total surface area of sphere.20. Write a program to calculate distance.[S=UT+1/2(AT2)].21. Write a program to input principal, rate, time and display total amount.22. Write a program to display area of square.23. Write a program to ask n number and print the sum of first n natural numbers.24. Write a program to ask n number and print the sum square of first n natural numbers.25. Write a program to display total surface area of hemisphere.
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16. Write a program to display total surface area of cylinder.
import java.util.Scanner;
class SurfaceAreaOfCylinder{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the radius of cylinder");
double radius = sc.nextDouble();
System.out.println("Enter the height of cylinder");
double height = sc.nextDouble();
double surfaceArea = 2 * Math.PI * (radius * radius) + 2 * Math.PI * radius * height;
System.out.println("Surface area of cylinder is " + surfaceArea);
}
}
17. Write a program to display total surface area of cuboid / box.
import java.util.Scanner;
class SurfaceAreaOfCuboid{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the length of cuboid");
double length = sc.nextDouble();
System.out.println("Enter the breadth of cuboid");
double breadth = sc.nextDouble();
System.out.println("Enter the height of cuboid");
double height = sc.nextDouble();
double surfaceArea = 2 * (length * breadth + breadth * height + length * height);
System.out.println("Surface area of cuboid is " + surfaceArea);
}
}
18. Write a program to display area and perimeter of rectangle.
import java.util.Scanner;
class PerimeterAndAreaOfRectangle {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the length of rectangle");
double length = sc.nextDouble();
System.out.println("Enter the breadth of rectangle");
double breadth = sc.nextDouble();
double perimeter = 2 * (length + breadth);
double area = length * breadth;
System.out.println("Perimeter of rectangle is " + perimeter);
System.out.println("Area of rectangle is " + area);
}
}
19. Write a program to display total surface area of sphere.
import java.util.Scanner;
class SurfaceAreaOfSphere {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the radius of sphere");
double radius = sc.nextDouble();
double surfaceArea = 4 * Math.PI * (radius * radius);
System.out.println("Surface area of sphere is " + surfaceArea);
}
}
20. Write a program to calculate distance.[S=UT+1/2(AT2)].
import java.util.Scanner;
class Distance {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the speed");
double speed = sc.nextDouble();
System.out.println("Enter the time");
double time = sc.nextDouble();
System.out.println("Enter the acceleration");
double acceleration = sc.nextDouble();
double distance = speed * time + 0.5 * acceleration * (time * time);
System.out.println("Distance is " + distance);
}
}
21. Write a program to input principal, rate, time and display total amount.
import java.util.Scanner;
class TotalAmount {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the principal");
double principal = sc.nextDouble();
System.out.println("Enter the rate");
double rate = sc.nextDouble();
System.out.println("Enter the time");
double time = sc.nextDouble();
double amount = principal * Math.pow(1 + rate / 100, time);
System.out.println("Amount is " + amount);
}
}
22. Write a program to display area of square.
import java.util.Scanner;
class AreaOfSquare {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the length of square");
double length = sc.nextDouble();
double area = length * length;
System.out.println("Area of square is " + area);
}
}
23. Write a program to ask n number and print the sum of first n natural numbers.
import java.util.Scanner;
class Sum {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number");
int number = sc.nextInt();
int sum = 0;
for (int i = 1; i <= number; i++) {
sum = sum + i;
}
System.out.println("Sum of first " + number + " natural numbers is " + sum);
}
}
24. Write a program to ask n number and print the sum square of first n natural numbers.
import java.util.Scanner;
class Sum {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number");
int number = sc.nextInt();
int sum = 0;
for (int i = 1; i <= number; i++) {
sum = sum + i * i;
}
System.out.println("Sum of square of first " + number + " natural numbers is " + sum);
}
}
25. Write a program to display total surface area of hemisphere.
import java.util.Scanner;
class SurfaceAreaOfHemisphere {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the radius of hemisphere");
double radius = sc.nextDouble();
double surfaceArea = 4 * Math.PI * (radius * radius);
System.out.println("Surface area of hemisphere is " + surfaceArea);
}
}