Create the IllegalTriangleException class, and modify the constructor of the Triangle class to throw an IllegalTriangleException object if a triangle is created with sides that violate the rule, as follows:

Complete question:

Create the Illegal Triangle Exception class, and modify the constructor of the Triangle class to throw an Illegal Triangle Exception object if a triangle is created with sides that violate the rule as follows:

/** Construct a triangle with the specified sides */

public Triangle (double side1, double side 2, double side 3)

throws IllegalTriangleException {

// Implement it

}

We have to guess at the original Triangle class as you didn't provide it, so I'll provide a skeleton.

For a triangle to be "legal" all sides should have a positive, non-zero length; and the sum of any two sides should be greater than the length of the third.

public class IllegalTriangleException extends Exception {

public IllegalTriangleException() {}

public IllegalTriangleException(String msg) { super(msg); }

};

public class Triangle

{

// Missing info ...

private double a, b, c;

public Triangle (double side1, double side 2, double side3 )

   throws IllegalTriangleException

{

     if ((side1 + side2 > side3) || (side1 + side3 > side2) || (side2+side3 > side1))

   throw new IllegalTriangleException("Illegal side ratios");

     if (side1 <= 0.0 || side2 <= 0.0 || side3 <= 0.0 )

   throw new IllegalTriangleException("Side lengths must be >= 0");

     a = side1; b = side2; c = side3;

}

};

Explanation:

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