This question has 4 parts. 1a-d. Again, it\'s one question with 4 parts. All par

Question

This question has 4 parts. 1a-d. Again, it's one question with 4 parts. All parts need to be answered correctly. You must: Comment and Format and Must make sure about indenting. If you don't follow these steps, it will be flagged for review.

This is on Dialog Boxes, loops and Strings- So make sure to use these methods.

This is on Dialog Boxes, loops and Strings Exercise 1a. Show a program containing 2 for loops that prints the following lines using while loops then change to for loops 123456789 10 810 12 14 16 18 20 22 24 26 Exercise 1b. Write a Java program that uses three input dialog boxes to get three integer values from the user. The program then determines the sum and average of the three values and uses a message dialog box to show the results. Test the program with two sets of data and include the results in this report. Make sure to make your message/input dialogs neat and easy to read in this report (you will need to copy/paste them in your document) Sample output: Input Enter the first value: Enter the second value: Enter the third value The sum is 30 The averege is 10.0 Cancel Cancel Exercise 1c. Write a program containing 3 while loops that prints the following lines and show the output for each 9 8 7 6 5 4 3 21 0 1 3 5 7 9 11 13 15 17 19 0 2 4 6 8 10 12 14 16 18 Exercise 1d. Write a program containing 3 for loops that does the same as exercise 2. Show the output from each loop

Explanation / Answer

Exercise1a

public class Looping1 {

public static void main(String[] args) {

int num=1;

//This while loop runs from 1 to 10 num=1

while(num<=10) {

System.out.print(num+" ");//Displaying the number

num++;//Increase num by 1

}

System.out.println();

//This for loop runs from 8 to 26 with increment of 2

for(int i=8;i<=26;i=i+2)

System.out.print(i+" ");

}

}

Exercise1b

import javax.swing.JFrame;

import javax.swing.JOptionPane;

public class SumAverage {

public static void main(String[] args) {

JFrame frame = new JFrame();

//Using inputDialog to input number 1

String num1 = JOptionPane.showInputDialog(

frame,

"Enter the first value:",

"Input",

JOptionPane.QUESTION_MESSAGE

);

//Using inputDialog to input number 2

String num2 = JOptionPane.showInputDialog(

frame,

"Enter the second value:",

"Input",

JOptionPane.QUESTION_MESSAGE

);

//Using inputDialog to input number 3

String num3 = JOptionPane.showInputDialog(

frame,

"Enter the third value:",

"Input",

JOptionPane.QUESTION_MESSAGE

);

//Converting strings to integers

int n1=Integer.parseInt(num1);

int n2=Integer.parseInt(num2);

int n3=Integer.parseInt(num3);

//Calculating sum

int sum=n1+n2+n3;

//Calculating average

double average = (double)sum/3;

//Output the sum and average on message dialog

JOptionPane.showMessageDialog(null, "The sum is "+sum+" The average is "+average,"Message", JOptionPane.INFORMATION_MESSAGE);

}

}

Exercise 1c

public class Looping2 {

public static void main(String[] args) {

int num=9;

//This while loop runs from 9 to 0 decrementing by 1

while(num>=0) {

System.out.print(num+" ");

num--;

}

System.out.println();

num=1;

//This while loop runs from 1 to 19 incrementing by 2

while(num<=19) {

System.out.print(num+" ");

num=num+2;

}

System.out.println();

num=0;

//This while loop runs from 0 to 18 incrementing by 2

while(num<=18) {

System.out.print(num+" ");

num=num+2;

}

}

}

Exercise 1d

public class Looping3 {

public static void main(String[] args) {

//This for loop runs from 9 to 0 decrementing by 1

for(int i=9;i>=0;i--)

System.out.print(i+" ");

System.out.println();

//This for loop runs from 1 to 19 incrementing by 2

for(int i=1;i<=19;i=i+2)

System.out.print(i+" ");

System.out.println();

//This for loop runs from 0 to 18 incrementing by 2

for(int i=0;i<=18;i=i+2)

System.out.print(i+" ");

System.out.println();

}

}

*************************************************************************************************************************

The sample input and output were as expected. As given in the question. I hope this helps you. All the best. :)

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.