Java | JSP | JSF Answers

1.Create a class called Divider in this project.

2.Declare a private instance variable of type int called divisor, then write a line of code in the constructor to initialise divisor to 2.

3. Write a public getter method for divisor.

4. Write a public setter method for divisor, which sets divisor to the value of the argument, provided the latter is not 0. If it is 0, the method does nothing. (This is because, as its name suggests, divisor is going to be used to divide, so the argument’s value cannot be zero, and the setter must only set it to non-zero values.)

Show an instance of the class to be used in testing, like..

something = something

Create a JAVA program that will input a student name, course, student grade in quiz, seatwork, laboratory exercises, assignment and prelim exam. Compute and output the Prelim Grade. Prelim Grade = Quiz * 25% + Seatwork * 10% + lab. Exercise * 20% +
Assignment * 5% + Prelim Exam * 40%

1.Create a class called Divider in this project.

2.Declare a private instance variable of type int called divisor, then write a line of code in the constructor to initialise divisor to 2.

3. Write a public getter method for divisor.

4. Write a public setter method for divisor, which sets divisor to the value of the argument, provided the latter is not 0. If it is 0, the method does nothing. (This is because, as its name suggests, divisor is going to be used to divide, so the argument’s value cannot be zero, and the setter must only set it to non-zero values.)

Show an instance of the class to be used in testing, like..

something = something

What is the difference between ActionListener and ItemListener?

Just write the most important thing to answer that question in a small paragraph and shows examples in code.

For this assignment you will input a String that contains a single % character, then a second String. The % will be replaced by the second String. So for example, if the user enters the Strings "d%g" and "in", the program outputs ding.
The original String must contain only letters of the alphabet, capital or lowercase, spaces and tab, and a single %. Any additional %'s can be treated as an invalid characters. The replacement String may be any legal String in Java.
If the first String does not contain a % "Error: no %" should be output.
If the first String contains anything other than letters of the alphabet, spaces or tabs then "Error: Incorrect characters" should be printed. If the first String does not have a % you do not have to check for incorrect characters, only "Error: no %" should be output.
NOTE: You MUST use the class name "Main" for this assignment.

in java -->
write a complete method that read a text file full of integer. you must do this
1)store the integer into A database named "Numbers" if number does not exists
or
2) increase the numbers frequency if it exists
Then you should display the entire content of the database on the screen.
Assume database has the following fields:
Number(integer) Freq(int)

you can assume that a condition to database is already existenced and is referenced by "Msconnection"

in java -->
write a complete method that read a text file full of integer. you must do this
1)store the integer into A database named "Numbers" if number does not exists
or
2) increase the numbers frequency if it exists
Then you should display the entire content of the database on the screen.
Assume database has the following fields:
Number(integer) Freq(int)

you can assume that a condition to database is already existenced and is referenced by "Msconnection"

I've been set the task of creating a basic earthquake monitoring program.

The classes for the program are:

Earthquake: store and retrieve data on magnitude, position (latitude & longitude) and year.

Observatory: store and retrieve data on name of observatory, country in which it's located, year in which observations began, area covered by observatory (in sq/kms) and list of earthquakes recorded by it.

Includes methods to return: the largest magnitude earthquake recorded by the observatory, the average earthquake magnitude recorded by the observatory, a list of all methods recorded by the observatory with a magnitude greater than a given number.

Monitoring: Holds information about all observatories. Includes methods to return: the observatory with the largest average magnitude, the largest magnitude earthquake ever recorded, a list of all earthquakes recorded with a magnitude greater than a given number

Any help would be hugely appreciated.

string class is serializable by default ? {true,false} ,and why false if false