Based on the java code below, how to develop a Junit code to Test for public class Driver1 using JUNIT code package stubdriver; /** * Converts from one unit to another (e.g., inches to feet) * * @author Prof. David Bernstein, James Madison University * @version 1.0 (Implemented getMultiplier) */ public class UnitConverter1 { /** * Default Constructor */ public UnitConverter1() { } /** * Perform a conversion * * @param value The number to convert * @param from The units for value (e.g., "inches") * @param to The units to convert to (e.g., "feet") * @return The converted value */ publicdouble convert(double value, String from, String to) { double result; result = value * getMultiplier(from, to); return result; } /** * Get the multiplier needed for a conversion * * @param from The units to convert from (e.g., "inches") * @param to The units to convert to (e.g., "feet") * @return What "from" needs to be multiplied by to get "to" */ publicdouble getMultiplier(String from, String to) { double multiplier; multiplier = 1.0; if (from.equals("inches")) { if (to.equals("feet")) multiplier = 1.0/12.0; else if (to.equals("yards")) multiplier = 1.0/12.0/3.0; else if (to.equals("miles")) multiplier = 1.0/12.0/3.0/1760.0; } else if (from.equals("feet")) { if (to.equals("inches")) multiplier = 12.0; else if (to.equals("yards")) multiplier = 1.0/3.0; else if (to.equals("miles")) multiplier = 1.0/3.0/1760.0; } else if (from.equals("yards")) { if (to.equals("inches")) multiplier = 3.0*12.0; else if (to.equals("feet")) multiplier = 3.0; else if (to.equals("miles")) multiplier = 1.0/1760.0; } else if (from.equals("miles")) { if (to.equals("inches")) multiplier = 12.0*3.0*1760.0; else if (to.equals("yards")) multiplier = 1760.0; else if (to.equals("feet")) multiplier = 3.0*1760.0; } return multiplier; } }

Based on the java code below, how to develop a Junit code to Test for public class Driver1 using JUNIT code package stubdriver; /** * Converts from one unit to another (e.g., inches to feet) * * @author Prof. David Bernstein, James Madison University * @version 1.0 (Implemented getMultiplier) */ public class UnitConverter1 { /** * Default Constructor */ public UnitConverter1() { } /** * Perform a conversion * * @param value The number to convert * @param from The units for value (e.g., "inches") * @param to The units to convert to (e.g., "feet") * @return The converted value / publicdouble convert(double value, String from, String to) { double result; result = value getMultiplier(from, to); return result; } /** * Get the multiplier needed for a conversion * * @param from The units to convert from (e.g., "inches") * @param to The units to convert to (e.g., "feet") * @return What "from" needs to be multiplied by to get "to" / publicdouble getMultiplier(String from, String to) { double multiplier; multiplier = 1.0; if (from.equals("inches")) { if (to.equals("feet")) multiplier = 1.0/12.0; else if (to.equals("yards")) multiplier = 1.0/12.0/3.0; else if (to.equals("miles")) multiplier = 1.0/12.0/3.0/1760.0; } else if (from.equals("feet")) { if (to.equals("inches")) multiplier = 12.0; else if (to.equals("yards")) multiplier = 1.0/3.0; else if (to.equals("miles")) multiplier = 1.0/3.0/1760.0; } else if (from.equals("yards")) { if (to.equals("inches")) multiplier = 3.012.0; else if (to.equals("feet")) multiplier = 3.0; else if (to.equals("miles")) multiplier = 1.0/1760.0; } else if (from.equals("miles")) { if (to.equals("inches")) multiplier = 12.03.01760.0; else if (to.equals("yards")) multiplier = 1760.0; else if (to.equals("feet")) multiplier = 3.0*1760.0; } return multiplier; } }

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Based on the java code below, how to develop a Junit code to Test for public class Driver1 using JUNIT code

package stubdriver;

/**

* Converts from one unit to another (e.g., inches to feet)

* @author Prof. David Bernstein, James Madison University

* @version 1.0 (Implemented getMultiplier)

public class UnitConverter1

{

/**

* Default Constructor

public UnitConverter1()

{

}

/**

* Perform a conversion

* @param value The number to convert

* @param from The units for value (e.g., "inches")

* @param to The units to convert to (e.g., "feet")

* @return The converted value

publicdouble convert(double value, String from, String to)

{

double result;

result = value * getMultiplier(from, to);

return result;

}

/**

* Get the multiplier needed for a conversion

* @param from The units to convert from (e.g., "inches")

* @param to The units to convert to (e.g., "feet")

* @return What "from" needs to be multiplied by to get "to"

publicdouble getMultiplier(String from, String to)

{

double multiplier;

multiplier = 1.0;

if (from.equals("inches")) {

if (to.equals("feet")) multiplier = 1.0/12.0;

else if (to.equals("yards")) multiplier = 1.0/12.0/3.0;

else if (to.equals("miles")) multiplier = 1.0/12.0/3.0/1760.0;

} else if (from.equals("feet")) {

if (to.equals("inches")) multiplier = 12.0;

else if (to.equals("yards")) multiplier = 1.0/3.0;

else if (to.equals("miles")) multiplier = 1.0/3.0/1760.0;

} else if (from.equals("yards")) {

if (to.equals("inches")) multiplier = 3.0*12.0;

else if (to.equals("feet")) multiplier = 3.0;

else if (to.equals("miles")) multiplier = 1.0/1760.0;

} else if (from.equals("miles")) {

if (to.equals("inches")) multiplier = 12.0*3.0*1760.0;

else if (to.equals("yards")) multiplier = 1760.0;

else if (to.equals("feet")) multiplier = 3.0*1760.0;

}

return multiplier;

}

package stubdriver;

/**
* A driver for testing the UnitConverter class
*
* @author Prof. David Bernstein, James Madison University
* @version 2.0
*/
public class Driver1
{
/**
* The entry point of the application
*
* @param args The command-line arguments
*/
public static void main(String[] args)
{
double converted, original;
int i, j;
String from, to;
String[] units = {"inches","feet","yards","miles"};
UnitConverter1 calculator;

calculator = new UnitConverter1();

original = 10.0;

for (i=0; i < units.length; i++) {
for (j=0; j < units.length; j++) {

from = units[i]; // This could be outside the inner loop
to = units[j];
converted = calculator.convert(original, from, to);
System.out.println(original+" "+from+" = "+converted+" "+to);
}
}
}

}

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