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EcholocationTest.java
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EcholocationTest.java
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/*--------------------------------------------------------------------------------------*/
/* EcholocationTest.java - Description */
/* */
/*--------------------------------------------------------------------------------------*/
/* Author: Enoch Wong */
/* Date: */
/*--------------------------------------------------------------------------------------*/
/* Input: */
/* Output: */
/*--------------------------------------------------------------------------------------*/
import java.io.*;
import java.util.*;
import java.text.*;
public class EcholocationTest
{
public static void main (String str[]) throws IOException
{
BufferedReader stdin = new BufferedReader (new InputStreamReader (System.in));
System.out.print ("Enter D1: ");
double D1 = Double.parseDouble (stdin.readLine ());
System.out.print ("Enter D2: ");
double D2 = Double.parseDouble (stdin.readLine ());
System.out.print ("Enter D3: ");
double D3 = Double.parseDouble (stdin.readLine ());
System.out.print ("Enter D4: ");
double D4 = Double.parseDouble (stdin.readLine ());
System.out.println ();
calculate (D1, D2, D3, D4);
}
static void calculate (double D1, double D2, double D3, double D4)
{
DecimalFormat df = new DecimalFormat ("#.##");
int length = 100;
double s1 = (D1 + D2 + length) / 2;
double area1 = Math.sqrt (s1 * (s1 - D1) * (s1 - D2) * (s1 - length));
System.out.println ("Area 1: " + area1);
double M1 = 2 * area1 / length;
System.out.println ("Midpoint 1: " + M1);
double x = Math.sqrt (Math.pow (D1, 2) - Math.pow (M1, 2));
System.out.println ();
double s2 = (D3 + D4 + length) / 2;
double area2 = Math.sqrt (s2 * (s2 - D3) * (s2 - D4) * (s2 - length));
System.out.println ("Area 2: " + area2);
double M2 = 2 * area2 / length;
System.out.println ("Midpoint 2: " + M2);
double y = Math.sqrt (Math.pow (D3, 2) - Math.pow (M2, 2));
System.out.println ();
double z = 150 - Math.sqrt (Math.pow (M2, 2) - Math.pow (length - x + 50, 2));
System.out.println ("X VALUE: " + df.format (x));
System.out.println ("Y VALUE: " + df.format (y));
System.out.println ("Z VALUE: " + df.format (z));
}
}