Java | JSP | JSF Answers

1.  Write a program that simulates the ATM interface.

   Use a do-while loop to display 6 services to the user

   Get the user input and display submenus appropriately.

2. Write a Boolean expression that evaluates to true if a number stored in variable num is between 1 and 100 or the number is negative

How can install eclipse java on my Windows 10 laptop?

Write a program that does the following:

1. Initialize the variables.

2. Prompt the user to enter 20 numbers.

3. For each number in the list:

a. Get the next number.

b. Output the number (echo input).

c. If the number is even: {i. Increment the even count. ii. If the number is zero, increment the zero count. }otherwise, Increment the odd count.

4. Print the results.

1. You can initialize the variables zeros, evens, and odds when you declare them.

2. Use an output statement to prompt the user to enter 20 numbers.

3. For Step 3, you can use a for loop to process and analyze the 20 numbers.

In pseudocode, this step is written as follows: for (counter = 1; counter <= 20; counter++) { a. get the number; b. output the number; c. switch (number % 2) //check the remainder { case 0: increment the even count; if (number == 0) increment the zero count; break; case 1: case -1: increment the odd count; }//end switch }//end for 4. Print the result. Output the values of the variables zeros, evens, and odds.

Write a program that does the following:

8. a. if (nthFibonacci == 1)

the desired Fibonacci number is the first Fibonacci number.

Copy the value of previous1 into current.

b. else if (nthFibonacci == 2)

the desired Fibonacci number is the second Fibonacci number.

Copy the value of previous2 into current.

c. else calculate the desired Fibonacci number as follows:

Since you already know the first two Fibonacci numbers of the

sequence, start by determining the third Fibonacci number.

i. Initialize counter to 3, to keep track of the calculated

Fibonacci numbers.

ii. Calculate the next Fibonacci number, as follows:

current = previous2 + previous1;

iii. Assign the value of previous2 to previous1.

iv. Assign the value of current to previous2.

v. Increment counter.

9. Append the nth Fibonacci number to outputString. Notice that

the nth Fibonacci number is stored in current.

10. Display the output dialog box showing the first two and the nth Fibonacci

numbers.

Create two buttons with button text "Button-1" and "Button-2" and put them in a frame using FlowLayout. Use pack () method to discard any whitespaces while putting those buttons in the frame. When you click on the "Button-1" it should display a message ("You clicked Button-1") in a popup window and when you click on the "Button-2" it should display a message ("You clicked Button-2")

Write a program that has these overloaded search methods to do array searching:

boolean search(int[] arr, int searchKey) – searches an integer array given a search key value, returns true if searchKey is found, false if not.

Hint:

boolean found=false;

for(int i=0; i<arr.length; i++){

   if(    ){//compare the array element with the search key value

      //action taken if found

   }

}

//return something

boolean search(String[] arr, String searchKey) – searches an array of strings given a search key value, returns true if searchKey is found, false if not.

(read Comparing_Strings.doc)

In the main method, you can declare and initialize the two arrays with random values, for example:

int[] intArray={7,3,2,8,1,0,9};

String strArray={"Enchanted","Bedazzled","Divine","Delighted","Elegant"};

Use the methods in the program.

Enter a string to search in the array: bedazzled

bedazzled is found in the array