Computer Applications
Design a class to overload a method volume( ) as follows:
- double volume(double r) — with radius (r) as an argument, returns the volume of sphere using the formula:
V = (4/3) * (22/7) * r * r * r - double volume(double h, double r) — with height(h) and radius(r) as the arguments, returns the volume of a cylinder using the formula:
V = (22/7) * r * r * h - double volume(double 1, double b, double h) — with length(l), breadth(b) and height(h) as the arguments, returns the volume of a cuboid using the formula:
V = l*b*h ⇒ (length * breadth * height)
Answer
public class KboatVolume
{
double volume(double r) {
double vol = (4 / 3.0) * (22 / 7.0) * r * r * r;
return vol;
}
double volume(double h, double r) {
double vol = (22 / 7.0) * r * r * h;
return vol;
}
double volume(double l, double b, double h) {
double vol = l * b * h;
return vol;
}
public static void main(String args[]) {
KboatVolume obj = new KboatVolume();
System.out.println("Sphere Volume = " +
obj.volume(6));
System.out.println("Cylinder Volume = " +
obj.volume(5, 3.5));
System.out.println("Cuboid Volume = " +
obj.volume(7.5, 3.5, 2));
}
}Variable Description Table
Program Explanation
Output
Related Questions
Design a class to overload a method compare( ) as follows:
- void compare(int, int) — to compare two integers values and print the greater of the two integers.
- void compare(char, char) — to compare the numeric value of two characters and print with the higher numeric value.
- void compare(String, String) — to compare the length of the two strings and print the longer of the two.
Design a class to overload a method series( ) as follows:
- double series(double n) with one double argument and returns the sum of the series.
sum = (1/1) + (1/2) + (1/3) + ………. + (1/n) - double series(double a, double n) with two double arguments and returns the sum of the series.
sum = (1/a2) + (4/a5) + (7/a8) + (10/a11) + ………. to n terms
- double series(double n) with one double argument and returns the sum of the series.
Design a class to overload the method display(…..) as follows:
- void display(int num) — checks and prints whether the number is a perfect square or not.
- void display(String str, char ch) — checks and prints if the word str contains the letter ch or not.
- void display(String str) — checks and prints the number of special characters present in the word str.
Write a suitable main( ) function.
Design a class to overload the method display(…..) as follows:
- void display(String str, char ch) — checks whether the word str contains the letter ch at the beginning as well as at the end or not. If present, print 'Special Word' otherwise print 'No special word'.
- void display(String str1, String str2) — checks and prints whether both the words are equal or not.
- void display(String str, int n) — prints the character present at nth position in the word str.
Write a suitable main() method.