creating object for class triangle

Define a class named triangle as described below:

Data members: 1) side1

2) Side2

3) side3

4) angle1, angle2, angle3

Methods : 1) constructors

2) trianglePerimeter()

3) triangleArea()

4) isoceles( )

5) equilateral( )

6) rightAngled()

7) scalene()

Test this class by creating an object for the class triangle.

class triangle{ 

public double s1; 

public double s2; 

public double s3; 

public double a1; 

public double a2; 

public double a3; 

public triangle(){ 

} 

public double trianglePerimeter(){ 

return this.s1+this.s2+this.s3; 

} 

public double triangleArea(){ 

double s = trianglePerimeter()/2; 

double a=s*(s-this.s1)*(s-this.s2)*(s-this.s3); 

return Math.pow(a, 0.5); 

} 

public void isisoceles(){ 

if(this.s1==this.s2 || this.s2==this.s3 || this.s3==this.s1) 

System.out.println("Triangle is isosceles."); 

else

System.out.println("Triangle is not isosceles."); 

} 

public void equilateral(){ 

if(this.s1==this.s2 && this.s2==this.s3 && this.s3==this.s1) 

System.out.println("Triangle is Equilateral."); 

else

System.out.println("Trianlge is not Equilateral."); 

} 

public void rightAngled(){ 

if(this.a1==90 || this.a2==90 || this.a3==90) 

System.out.println("Triangle is Right angled."); 

else

System.out.println("Trianle is not Right angled."); 

} 

public void scalene(){ 

if(this.a1!=this.a2 || this.a2!=this.a3 || this.a3!=this.a1) 

System.out.println("Triangle is scalene."); 

else

System.out.println("trianlge is not scalene."); 

} 

} 

class triangleClass{ 

public static void main(String[] args) { 

triangle t = new triangle(); 

t.a1=90; 

t.a2=45; 

t.a3=45; 

t.s1=12; 

t.s2=25; 

t.s3=16; 

System.out.println("The perimeter of the triangle is "+t.trianglePerimeter()); 

System.out.println("The area of the trianle is "+t.triangleArea()); 

t.isisoceles(); 

t.equilateral(); 

t.rightAngled(); 

t.scalene(); 

} 

}

OUTPUT:

The perimeter of the triangle is 53.0

The area of the trianle is 77.79419965524421

Triangle is not isosceles.

Trianlge is not Equilateral.

Triangle is Right angled.

trianlge is not scalene.