/* Problem4 * Brandon Watkins * 10/23/08 * * This program prompts the user to input the center of a circle and a point ona circle. It then calculates the radius, diameter, circumference, and area. */ // Import Classes Uncomment as needed import java.util.*; import java.lang.*; public class Problem4 { static Scanner console = new Scanner(System.in); // create scanner to obtain input from the command line public static void main(String[] args) { //variable declaration double x1; double x2; double y1; double y2; double distance; //executable statements // Prompts for first double and stores value in x1 System.out.print ("Enter the value for the first point on the circle: "); x1 = console.nextDouble(); System.out.println(); // Prompts for first double and stores value in x2 System.out.print ("Enter the second point on the circle: "); x2 = console.nextDouble(); System.out.println(); // Prompts for first double and stores value in y1 System.out.print ("Enter the third point on the circle: "); y1 = console.nextDouble(); System.out.println(); // Prompts for first double and stores value in y2 System.out.print ("Enter the fourth point on the circle: "); y2 = console.nextDouble(); System.out.println(); } public static double distance (double x1, double x2, double y1, double y2) { double distance; distance = Math.sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1)); return distance; } public static double radius (double x1, double x2, double y1, double y2) { double radius; distance (double x1, double x2, double y1, double y2); radius = distance; return radius; } }

This is what I have so far. I am stuck hardcore on the radius and distance methods.

I have to make a program that out puts a circle's radious, area, and circumference when it is given the center and a point on the circle.

I have make and use these 5 methods:

a. distance: This method takes as its parameters four numbers that represent two points in the plane and returns the distance between them.

b. radius: This method takes as its parameters four numbers that represent the center and a point on the circle, calls the method distance to find the radius of the ricle, returns the circles radius

c. This method takes as its parameter a number that represents the radius of the circle and returns the circles circumference.

d. area: distance: This method takes as its parameters a number that represents the radius of a circle and returns the circles area.

e. Use the named constant PI from the math class to specifi the value of pi

I am getting these errors. I am a complete noob and am lost. I have been working on this for hours.

6 errors found:

File: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java [line: 70]

Error: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java:70: '.class' expected

File: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java [line: 70]

Error: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java:70: ';' expected

File: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java [line: 70]

Error: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java:70: <identifier> expected

File: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java [line: 70]

Error: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java:70: not a statement

File: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java [line: 70]

Error: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java:70: ';' expected

File: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java [line: 70]

Error: C:\Users\Brandon\Documents\Dr Java\Week4\Problem4.java:70: ';' expected

Please help me

This post has been edited by **bwat47**: 23 September 2008 - 07:07 PM