w3resource

Java: Print the values of x, y where a, b, c, d, e and f are specified

Java Basic: Exercise-214 with Solution

Write a Java program which solve the equation:
ax+by=c
dx+ey=f
Print the values of x, y where a, b, c, d, e and f are given.

Input:

a,b,c,d,e,f separated by a single space.
(-1,000 ≤ a,b,c,d,e,f ≤ 1,000)

Sample Solution:

Java Code:

import java.math.BigDecimal;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        // Creating a Scanner object for user input
        Scanner sc = new Scanner(System.in);
        // Creating ArrayDeque to store Double values for x and y
        ArrayDeque<Double>x = new ArrayDeque<>();
        ArrayDeque<Double> y = new ArrayDeque<>();
        // Prompting the user to input the values of a, b, c, d, e, f
        System.out.println("Input the value of a, b, c, d, e, f:");
        // Reading values for coefficients a, b, c, d, e, f
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int d = sc.nextInt();
        int e = sc.nextInt();
        int f = sc.nextInt();
        // Calculating values for variables s and t
        double t = (double) (d * c - a * f) / (d * b - a * e);
        double s = (double) (c - t * b) / a;
        // Pushing the calculated values of x and y into the respective Deques
        x.push(s);
        y.push(t);
        // Getting the size of the Deques
        int num = x.size();
        // Iterating through the Deques to print the results with rounded values
        for (int i = 0; i < num; i++) {
            BigDecimal bdx = new BigDecimal(x.pollLast());
            BigDecimal bdy = new BigDecimal(y.pollLast());
            BigDecimal ansx = bdx.setScale(4, BigDecimal.ROUND_HALF_UP);
            BigDecimal ansy = bdy.setScale(4, BigDecimal.ROUND_HALF_UP);
            // Printing the rounded values of x and y
            System.out.printf("%.3f", ansx.doubleValue());
            System.out.print(" ");
            System.out.printf("%.3f", ansy.doubleValue());
            System.out.println();
        }
    }
}

Sample Output:

Input the value of a, b, c, d, e, f:
 5 6 8 9 7 4
-1.684 2.737

Flowchart:

Flowchart: Java exercises: Print the values of x, y where a, b, c, d, e and f are specified.

Java Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a Java program to check whether three given lengths (integers) of three sides form a right triangle. Print "Yes" if the given sides form a right triangle otherwise print "No".
Next: Write a Java program to compute the amount of the debt in n months. The borrowing amount is $100,000 and the loan adds 4% interest of the debt and rounds it to the nearest 1,000 above month by month.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.