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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.

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

what is meant by giving a variable within a class variable a transient attribute?

why preparedstatement is faster in execution than standard SQL statement ?

Exception in thread "main" java.lang.NumberFormatException: For input string: "J"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:492)
at java.lang.Integer.parseInt(Integer.java:527)
at bear.read(bear.java:34)
at bear.main(bear.java:15)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

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"

write a java code segment that will return the number of file found inside the directory "d:/windows" iff the named directory does indeed exists