Java_Лекция 2 / mas

import java.io.*;
import java.util.*;
import java.math.*;
class mas
{
	public static void main(String args[]) throws java.io.IOException
	{
		int[] A = new int[3];
		double x1,x2; 
		System.out.println("Enter " + A.length + " numbers: a,b,c");
		int i;
		for (i = 0; i < A.length; i++)
		{
			BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
			String input = in.readLine();
			StringTokenizer idata = new StringTokenizer(input);
			A[i] = Integer.parseInt(idata.nextToken());
		System.out.println("Enter " + A.length + " numbers: a,b,c"+A[i]);
		}

		int j, a=A[0], b=A[1], c=A[2];
		if((b*b -4*a*c)>=0)
                {
		double d=Math.sqrt( b*b -4*a*c);
		if(d>0)
                {
		
		x1 = (-b + d)/(2*a);

		x2 = (-b - d)/(2*a);
		System.out.println("solution ");
		System.out.print( x1);
		System.out.print(x2);
               }
		if(d==0)
               {
		x1=x2=-b/(2*a);
		System.out.println("solution ");
		System.out.print( x1);
		System.out.print(x2);
                }
		}

		else
		System.out.println("No real solution");	
				
		

		

	}
}