Computer Applications
Design a class to overload a function area( ) as follows:
- double area (double a, double b, double c) with three double arguments, returns the area of a scalene triangle using the formula:
area = √(s(s-a)(s-b)(s-c))
where s = (a+b+c) / 2 - double area (int a, int b, int height) with three integer arguments, returns the area of a trapezium using the formula:
area = (1/2)height(a + b) - double area (double diagonal1, double diagonal2) with two double arguments, returns the area of a rhombus using the formula:
area = 1/2(diagonal1 x diagonal2)
Java
User Defined Methods
ICSE 2014
284 Likes
Answer
import java.util.Scanner;
public class KboatOverload
{
double area(double a, double b, double c) {
double s = (a + b + c) / 2;
double x = s * (s-a) * (s-b) * (s-c);
double result = Math.sqrt(x);
return result;
}
double area (int a, int b, int height) {
double result = (1.0 / 2.0) * height * (a + b);
return result;
}
double area (double diagonal1, double diagonal2) {
double result = 1.0 / 2.0 * diagonal1 * diagonal2;
return result;
}
}Variable Description Table
Program Explanation
Output
Answered By
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Related Questions
Assertion (A): Static method can access static and instance variables.
Reason (R): Static variable can be accessed only by static method.
- Assertion and Reason both are correct.
- Assertion is true and Reason is false.
- Assertion is false and Reason is true.
- Assertion and Reason both are false.
Define a class to overload the method perform as follows:
double perform (double r, double h) — to calculate and return the value of curved surface area of cone
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r = 4, c = 5
output
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
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Method prototype for the method compute which accepts two integer arguments and returns true/false.
- void compute (int a, int b)
- boolean compute (int a, int b)
- Boolean compute (int a,b)
- int compute (int a, int b)
Consider the following program segment and answer the questions below:
class calculate { int a; double b; calculate() { a=0; b=0.0; } calculate(int x, double y) { a=x; b=y; } void sum() { System.out.println(a*b); }}Name the type of constructors used in the above program segment?