Java | JSP | JSF Answers

What is Function?

Explain me about cookies and how it is used to get the previous log-in time without changing the value on pressing refresh button.

bubble sort java program

Write code to declare a two dimensional array that stores doubles.

3. Write a program to create a file Unicode.dat which contains rows of unicode
characters with their code number equivalent, starting at 27 and finishing with
125. If the program runs successfully, the only message your program prints on
screen is “Output file has been created: Unicode.dat’ but opening the file
shows the output below.

write a program that reads in a set of positive integers and outputs how many times a particular number appears in the list. you may assume that the data set has at most 100 numbers and -999 marks the end of the input data. the numbers must be output in increasing order.

How do I add an object to an array at the specified index?

Why List allows duplicates while Set not?

Using Interpreter pattern how to read a text file and represent it as abstract syntax tree which we can execute in java.

how to ask user to reenter ID number if the number entered is invalid?
inputString = JOptionPane.showInputDialog(null, "Enter the student ID number");
IDNumber = Integer.parseInt(inputString);

for(x = 0; x < studentsIDNumberList.length && !validIDNumber; ++x)
{
if(IDNumber == studentsIDNumberList[x])
{
validIDNumber = true;
firstName = studentsFirstNameList[x];
GPA = studentsGPAArray[x];
}
}

if(validIDNumber)
{
JOptionPane.showMessageDialog(null, "The ID number you entered is " + IDNumber + ". This number belong to "
+ firstName + " and this student GPA is " + GPA);
}

else
{
JOptionPane.showMessageDialog(null, "Invalid ID number!");
}