Java: Test whether AB and CD are orthogonal or not
Java Basic: Exercise-235 with Solution
There are four different points on a plane: P(xp, yp), Q(xq, yq), R(xr, yr) and S(xs, ys).
Write a Java program to test whether AB and CD are orthogonal or not.
Input:
xp,yp, xq, yq, xr, yr, xs and ys are -100 to 100 respectively and each value can be up to 5 digits after the decimal point It is given as a real number including the number of.
Output: Yes or No.
Sample Solution:
Java Code:
import java.util.*;
import static java.lang.Math.*;
class Main{
public static void main(String args[]){
System.out.println("Input xp, yp, xq, yq, xr, yr, xs, ys:");
Scanner scan = new Scanner(System.in);
double x[] = new double[4];
double y[] = new double[4];
for(int i=0;i<4;i++){
x[i] = scan.nextDouble();
y[i] = scan.nextDouble();
}
double a = (x[0] - x[1]) * (x[2] - x[3]);
double b = (y[0] - y[1]) * (y[2] - y[3]);
if((float)a + (float)b == 0)
System.out.println("Two lines are orthogonal.");
else
System.out.println("Two lines are not orthogonal.");
}
}
Sample Output:
Input xp, yp, xq, yq, xr, yr, xs, ys: 3.5 4.5 2.5 -1.5 3.5 1.0 0.0 4.5 Two lines are not orthogonal.
Pictorial Presentation:
Flowchart:

Java Code Editor:
Contribute your code and comments through Disqus.
Previous: Write a Java program to create maximum number of regions obtained by drawing n given straight lines.
Next: Write a Java program to sum of all numerical values (positive integers) embedded in a sentence.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
- Weekly Trends
- Python Interview Questions and Answers: Comprehensive Guide
- Scala Exercises, Practice, Solution
- Kotlin Exercises practice with solution
- MongoDB Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - JOINS
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join