**編寫程式，提示使用者輸入a,b,c,e和f,然後顯示結果。 如果ad-bc=0，則方程式無解 應用Cramer規則求解線性方程組**

public class linearEquation {

public static void main(String[] args) {

    java.util.Scanner input = new java.util.Scanner(System.in);

    System.out.print("Enter  a, b, c, d, e, f:");
    double a = input.nextDouble();      
    double b = input.nextDouble();
    double c = input.nextDouble();
    double d = input.nextDouble();
    double e = input.nextDouble();
    double f = input.nextDouble();

    //提醒使用者輸入a,b,c,d,e,f

    double discriminant = a * d - b * c;

    if(discriminant != 0)
    {
        double x = (e * d - b * f) / discriminant ;
        double y = (a * f - e * c) / discriminant ;

        System.out.println("x is " + x + " and y is " + y );
    }
    else 
    {
        System.out.println("The equation has no solution");
        System.exit(1);//終止程式
    }
}
 

} “`