Please. need help with this. I attached how the final image should look There are two logic errors in setting up the global constants. Locate and fix those errors. Go to the calcTotal() To guard against users entering a zero or negative value for the estimated weight, replace the statement totalCost += wgtBox.value * COST_PER_LB; with a try catch statement that does the following: 0. Tests whether wgtBox.value is not greater than 0 by using the expression ! (wgtBox.value > 0). If that expression is true, throw an exception with the error message “!! Enter a positive weight” If no exception is thrown then run the command totalCost += wgtBox.value * COST_PER_LB;. If an exception is caught, set the value of msgBox. inner HTML to the error message you defined for the thrown exception. Repeat Step 5, for the estimated distance cost using distBox.value. Throw the error message “!! Enter a positive mileage” for a caught exception. Save your changes to the file. Test your code by entering 0 for the estimated weight and 1200 for the mileage. Confirm that the error message “!! Enter a positive weight” appears next to the total box. Change the weight to 2500 and enter a 0 for the estimated mileage. Confirm that the error message “!! Enter a positive mileage” appears next to the total box. Enter a mileage of 1200 miles and click the Setup and Installation box. Confirm that the estimated moving cost is calculated to be $2650

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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Please. need help with this. I attached how the final image should look

There are two logic errors in setting up the global constants. Locate and fix those errors.
Go to the calcTotal() To guard against users entering a zero or negative value for the estimated weight, replace the statement totalCost += wgtBox.value * COST_PER_LB; with a try catch statement that does the following: 0. Tests whether wgtBox.value is not greater than 0 by using the expression ! (wgtBox.value > 0). If that expression is true, throw an exception with the error message “!! Enter a positive weight”
1. 1. If no exception is thrown then run the command totalCost += wgtBox.value * COST_PER_LB;.
  2. If an exception is caught, set the value of msgBox. inner HTML to the error message you defined for the thrown exception.
2. Repeat Step 5, for the estimated distance cost using distBox.value. Throw the error message “!! Enter a positive mileage” for a caught exception.
Save your changes to the file.
Test your code by entering 0 for the estimated weight and 1200 for the mileage. Confirm that the error message “!! Enter a positive weight” appears next to the total box.
Change the weight to 2500 and enter a 0 for the estimated mileage. Confirm that the error message “!! Enter a positive mileage” appears next to the total box.
Enter a mileage of 1200 miles and click the Setup and Installation box. Confirm that the estimated moving cost is calculated to be $2650