Q2. Write a class with 2 methods. The first method determines if any two sides added together are greater than the remaining side. The second method calculates the triangle's area. // Method 1: Return true if the sum of every two sides is greater than the third. public static boolean isValid(double sid1, double side2, double side3) // Method 2: Return the triangle area public static double area(double side1, double side2, double side3) Develop a test program that takes in the three sides of a triangle and uses the isValid( )method to determine if the input is valid according to the above criteria. If the inputs are valid display the area. Otherwise display an error message and continue to ask for inputs until a valid set is received.

Q2. Write a class with 2 methods. The first method determines if any two sides added together are greater than the remaining side. The second method calculates the triangle's area. // Method 1: Return true if the sum of every two sides is greater than the third. public static boolean isValid(double sid1, double side2, double side3) // Method 2: Return the triangle area public static double area(double side1, double side2, double side3) Develop a test program that takes in the three sides of a triangle and uses the isValid( )method to determine if the input is valid according to the above criteria. If the inputs are valid display the area. Otherwise display an error message and continue to ask for inputs until a valid set is received.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Math class and its different methods

Java math class consists of arithmetic math methods that performs basic numeric operations such as finding the maximum or minimum of two values, rounding values, logarithmic functions, square root, and trigonometric functions, etc. The Math library functions can be accessed using the header Java.lang.Math. These math methods under Java math class are for our convenience.

Question

Q2.
Write a class with 2 methods. The first method determines if any two sides added
together are greater than the remaining side. The second method calculates the triangle's
area.
// Method 1: Return true if the sum of every two sides is greater than the third.
public static boolean isValid(double sid1, double side2, double side3)
// Method 2: Return the triangle area
public static double area(double side1, double side2, double side3)
Develop a test program that takes in the three sides of a triangle and uses the
isValid( )method to determine if the input is valid according to the above criteria. If the
inputs are valid display the area. Otherwise display an error message and continue to ask
for inputs until a valid set is received.
The formula for computing the area of a triangle is as follows:
s = (side1 + side2 + side3)/2
area = /s(s – side1)(s – side2)(s – side3)
Hint: use a while loop to check the validity of the user's input.

Enter three sids in double: 1 2.4 10
Invalid Input. Try again.
Enter three sides in double: 5 7.2 20
Invalid Input. Try again.
Enter three sides in double: 5 7.2 10
Area: 17.043

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