Comments on: Java program to prints all real solutions to the quadratic equation ax2+bx+c = 0

By: smiley sreenu

smiley sreenu — Thu, 19 Mar 2015 15:20:53 +0000

output????????

By: Getoar

Getoar — Mon, 01 Dec 2014 15:06:38 +0000

import java.util.Scanner;
public class EkuacioniKuadratik
{
public static void main(String[] arg)
{
Scanner sc=new Scanner(System.in);
System.out.print(“Vlera e a: “);
double a=sc.nextDouble();
System.out.print(“Vlera e b: “);
double b=sc.nextDouble();
System.out.print(“Vlera e c: “);
double c=sc.nextDouble();

if(a==0&&b!=0)
{
System.out.println(“Ekuacioni eshte linear dhe x= “+(-c/b));
System.exit(0);
}
if(a==0&&b==0&&c!=0)
{
System.out.println(“Ekuacioni nuk ka zgjidhje”);
System.exit(0);
}
if(a==0&&b==0&&c==0)
{
System.out.print(“Sistemi eshte i pacaktuar”);
System.exit(0);
}
double d=Math.pow(b,2)-4*a*c;

if(d<0)
{
d=Math.abs(d);
double x1=(-b+Math.sqrt(d))/2*a;
double x2=(-b-Math.sqrt(d))/2*a;
System.out.println("x1="+x1+"i , x2="+x2+"i");
}
else{
double x1=(-b+Math.sqrt(d))/2*a;
double x2=(-b-Math.sqrt(d))/2*a;
System.out.println("x1="+x1+" ,x2="+x2);
}
}

}

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By: lingesh

lingesh — Wed, 31 Jul 2013 11:53:55 +0000

Scanner class is used to get the input from the user.
ex:
int x;
Scanner sc = new Scanner();
x=sc.nextInt();
system.out.print(x);