tr.java

java code to calculate transpose of a matrix

import java.io.*;
import java.lang.*;
class triangle
{
	double b,ht,hy;
	int a1,a2,a3;
	triangle(int x,int y,int z)
	{
		a1=x;
		a2=y;
		a3=z;
	}
	triangle(double x,double y,double z)
	{
		b=x;
		ht=y;
		hy=z;
	}
	void triarea()
	{
		double a;
		a=0.5*(b+ht);
		System.out.println("area of triangle:"+a);
	}
	void triperi()
	{
		double c;
		c=(b+ht+hy);
		System.out.println("perimeter of triangle:"+c);
	}
	void isos()
	{
		if(b==ht||b==hy)
		System.out.println("triangle is isosceles");
		else  if(ht==hy)
		System.out.println("triangle is isosceles");
		else
		System.out.println("triangle is not isosceles");
	}
	void right()
	{
		if(a1==90||a2==90||a3==90)
		System.out.println("triangle is right angled");
		else
		System.out.println("triangle is not right angled");
	}
}
class tr
{
	public static void main(String arg[])throws Exception
	{
		triangle o1=new triangle(4.3,5.0,2.0);
		triangle o2=new triangle(30,60,90);
		o1.triarea();
		o1.triperi();
		o1.isos();
		o2.right();
	}
}