I am having problems with my code I have added the multiplication and division but they will not display also how can I correct any error when dividing by zero?
import java.awt.*;
import java.awt.event.*;
public class calculator2 extends java.applet.Applet implements ActionListener {
TextField txtTotal = new TextField("");
Button button[] = new Button[10];
[Code] .....
I was trying to execute the following program and the multiplication worked but the division didn't work.
import java.util.Scanner;
public class BodyMassIndex {
public static void main(String[] args) {
// Prompt the user for weight and height
// Create a scanner
Scanner input = new Scanner (System.in);
System.out.println("Please enter your weight in pounds");
int weight = input.nextInt();
System.out.println("Please enter your height in inches");
int height = input.nextInt ();
double BMI = weight * (0.45359237)/ (height * 0.0254)*(height * 0.0254);
// the weight * (0.45359237) executed but it wasn't divided by (height * 0.0254)*(height * 0.0254)
System.out.println ("Your BMI is "+BMI);
Prompt for the project is "Write a program that will ask the user for a number of seconds and output the equivalent period of time in days, hours, minutes, and seconds.The program should:
-Use modulo division to calculate the number of days, hours, and minutes.
-Use compound operators when making assignments.
-Proper formatting and use of comments
-Symbolic constants defined as the number of seconds in a minute, hour, and day.
For example: final int sec_in_min = 60;"
public class Mod1
{
public static void main (String[] args)
{
int sec, min, hr, day;
final int SEC_IN_MIN = 60;
final int SEC_IN_HR = 60 * 60;
final int SEC_IN_DAY = 60 * 60 * 24;
[code]....
I'm doing project in area of "Cryptography and Network security". I'm having a file with binary Unicode (mean file contain Unicode value of corresponding data (text file)), want to divide that as blocks with the size of 144bits.
View Replies View RelatedThis is my code so far, how can I improve to show the reminder of the operation as well.
package calculator4;
import java.io.*;
public class divide
{
public int num2;
public int num1;
public static void main(String args[])
[Code] ....
noticed that if I use integers only and simple multiiplication to get my exponent results (in this instance I was looking into Base 26) what is returned is odd, BUT consistent results once I surpass the integer upper limit of 2,147,483,647. I anticipated that once this limit was reached the program would blow up somehow, but no.
public static void main(String[] args) throws IOException{
// TODO Auto-generated method stub
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter an integer exponent: ");
int i = Integer.parseInt(br.readLine());
CountAlpha ca = new CountAlpha();
[code]....
Write a program that prompts the user for an input number and checks to see if that input number is greater than zero. If the input number is greater than 0, the program does a multiplication of all the numbers up to the input number starting with the input number. For example if the user inputs the number 9, then the program displays the following sum:
9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 362880
That's the question I'm getting and so far all I've got is
import java.util.Scanner;
public class Lab4Q3
{
public static void main (String[] args)
{
int keyboard;
[Code] .....
I wanna to know how to do division with remainder Presented as xry where x is result of the division
And y is the remainder like 9 % 3 = 9r3
I have used FileInputStream class but its not working properly to divide the bits into blocks.I will attach the coding
public static void main(String[] args) {
ReadFileExample newclass = new ReadFileExample();
System.out.println("cryptography");
[Code].....
I am using count++ in my program in order to count the number of division that occurs. It works but outputs:
The number of divisions is 1
The number of divisions is 2
The number of divisions is 3
The number of divisions is 4
The number of divisions is 5
All i want is the last line. How do I solve this?
import java.util.Scanner;
public class Program3
{
public static void main(String [] args)
{
int div;
[Code] ....
Here is the Butterfly sub division technique which refines the mesh of a STL file.I have to prepare a java code based on this technique, give the step by step procedure or algorithm for this.(files attached)
View Replies View RelatedThe challenge is to weed out all the prime numbers without using any kind of division (%, /). My code doesn't weed out certain numbers, such as many multiples of 5, the number 49, etc, and I am not sure why. Here is my code.
My logic for the for loops was this: Starting with the upper numbers of the ArrayList, find every number that is a multiple of that number and remove it from the ArrayList. Every time you find a multiple, increase the variable multiply, so the program knows what the next multiple to look for.
// program doesn't work yet.
import java.util.ArrayList;
// import java.util.ListIterator;
public class Sieve2
{
public static void main(String[] args)
{
int upperLimit = 55;
ArrayList<Integer> primes = new ArrayList<Integer>();
[Code] .....
And this is the output:
1 2 3 5 7 11 13 17 19 23 25 29 31 35 37 41 43 47 49 53 55
I can not this to work correctly.
public static void main(String[] args) {
FloatWrapper x1=new FloatWrapper(0);
FloatWrapper x2=new FloatWrapper(0);
do{
switch(menu()){
case 'a': if(dataInput(x1,x2)) add(x1,x2); break;
case 'b': if(dataInput(x1,x2)) subtract(x1,x2); break;
[code]....
This is what I ended up with and it is not what I want.
How do I convert this to an applet that would run independently on a desk top out of all these shells?
[URL]
so for my computer science class, we have the following problem:
In your documentation be sure to say which loop you thought was easier to implement for this program and why Write a program that produces the following outputs. The first line of output must be written using a For-Loop. The second, using a While-Loop and the third using a Do-Loop.
You look at the program and smile because you see that the series is just the numbers 1-10 squared...just one line is in reverse order. No problem! As you start typing you discover that the number 8 key on your keyboard is not working. For this program you are unable to use the multiplication key
So, back to the drawing board. By staring at the sequence a light comes on and you are able to quickly finish this program WITHOUT using mulitiplication (or the Math class/ solve with arithmetic operators +, - or / ) .
Sample output:
For Loop
1 4 9 16 25 36 49 64 81 100
While Loop
100 81 64 49 36 25 16 9 4 1
Do While Loop
1 4 9 16 25 36 49 64 81 100
I have the "for" done, but I did it with a "for" in the beginning but then had a multitude of nested "if" loops so that I could do 7*7=7+7+7+7+7+7+7
Code for sparse matrix addition and Multiplication...
View Replies View RelatedI am trying to make a calculator using Java GUI. I've managed to make an ActionListener and add it to a button, but I've made an error in my code that I'm unsure of how to solve. Because of how I've written the code, only one number can be placed in the text field. For example, the an ActionListener for the three button on the calculator was added to the button, but no matter how many times the user presses the button, only one 3 will appear in the text field. The code is below:
import javax.swing.*;//import the packages needed for gui
import java.awt.*;
import java.awt.event.*;
public class Calculator {
public static void main(String[] args) {
JFrame window = new JFrame("Window");//makes a JFrame
window.setSize(300,350);
[code].....
As you can see, because the compiler forces the String variable to be final, so when the user presses the button, the code simply shows how a space character and three character would look like, because the String variable can't change. How do I write my code so that every time the user presses the button, a character is added to the text field?
I wanted to build a calculator in java but I have a problem I wanted to when I type "plus" , go to This IF but don't go
import java.util.Scanner;
public class Session {
static String amal;
[code]....
I am making rows and columns in the form of a multiplication table, listed below is my code:
package assignments;
public class MultTable {
public static void main (String [] args) {
int row, column, x, y;
for(row = 0; row < 8; row++)
[Code] .....
If you see my sample run you can see that I have the multiplication table down but, I haven't completed it. I have to make the bottom left half of the whole table blank somehow. For example, I have to make it halfway through the middle of the table the bottom left half full of white space...
5 6 7 8 9
12 14 16 18
21 24 27
32 36
90
hm, it's supposed to be the other way around horizontally.
i have a similar problem but what i need to do is to detect an exused absent of which in my notepad is represented by 00 and 0 being an unexcused absent, anyway if a student has an excused absent example a quiz for that day will be deducted from the total quizzes example if i was the teacher and had 2 quizzes of 10 items each and she was absent in one of the quizes instead of let say her score was 9 on the first quiz it should go 9/10 and if it was an unexcused absent 9+0/20 anyway this is my java code and notepad example
import java.io.*;
import java.util.*;
import java.lang.*;
public class GradingSystem {
public static void main (String[] args) throws FileNotFoundException
[code]...
I am trying to make GPA calculator. I decided to use only switch statement and make it as simple as possible. The point is to enter as many classes and students as user wants. I keep getting credit points 0 at the end and also text format is not good too. Here is the code.
import java.util.Scanner;
import java.io.*;
public class SwitchExercise{
public static void main(String[] args) {
String grade = "";
String grades="";
String coursename="";
String headingleft="COURSES";
[code]....
So I was making a Java Calculator that only adds. The problem is that the numbers are not adding. I think it is because whatever has been clicked is not being saved to be added.
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
[Code] .....
I am a beginner with Java. I have never used SWING before but I have to use it now and I am clueless. I don't know if what I am doing is right.I need to create a simple calculator. My problem is getting the buttons the user clicks to appear in a text field. I know I haven't added the =/*- buttons yet.
I have left actionPerformed practically blank, what to put in ?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
* Created by IntelliJ IDEA.
* Date: 11/12/2014
* Changing Face Program.
*/
public class Calc extends JFrame implements ActionListener
[code]...
Design and implement an application that produces a multiplication table, showing the results of multiplying the integers 1 through 12 by themselves
View Replies View RelatedSteps are:
Create a new class, MultiplicationTable, that has a single field to store an integer multiplication table
Create a constructor that takes a parameter for the maximum number to be multiplied in the table. For example, MultiplicationTable(9) would have a maximum value of 81, where as MultiplicationTable(12) would have a maximum value of 144. Initialize the field in the constructor with the appropriate multiplication values.
Create a multiply method that takes two integers as parameters and returns their multiplication value by looking it up in the field. Make sure to test this method with values greater than the max the table should have stored. How can you handle these cases?
Create a main method that repeatedly tests multiply by printing out the entire multiplication table.
So far i got:
Java Code:
package collectionsHw_netid;
class MultiplicationTable {
// field
int mt;
MultiplicationTable(){
{
for (int i=0; i<=9; i++)
[Code] ....
Is my code right? also how do i print it out? the professor told us that everything should be outside of the main method...
My assignment is to design a simple GUI calculator using the stack data structure to perform additions, subtractions, multiplications and divisions. But i having error while i press the action there.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.util.Stack;
public class JCalculator implements ActionListener {
[Code] ...