GUI Converter Button - Fahrenheit To Celsius

Nov 13, 2014

I am new to java and I am trying to learn a little about GUI. I found this problem of creating a converter for temp from farenheit to celcius. I have everything working, except for when I hit the converter button... it does not convert.

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

[Code] .....

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Fahrenheit To Celsius Converter - Output Box

Sep 23, 2014

The assignment reads: Develop a Java program (F2C.java) for converting a temperature from the Fahrenheit to the Celsius scale. The program will read the temperature graphically using an input dialog box

(JOptionPane.showInputDialog) and will show also the result graphically on a message dialog box (JOptionPane.showMessageDialog).

I can get my input box to show, but I am unable to get to the output box

What I have came up with:

import javax.swing.JOptionPane;
public class F2C {
public static void main(String[] args) {
// Enter Farenheit
String Fahrenheit = JOptionPane.showInputDialog(

[Code] .....

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Celsius To Fahrenheit Java GUI

Aug 4, 2014

Write a CiUI application that converts Celsius temperatures to Fahrenheit temperatures. The user should be able to enter a Celsius temperature, click a button, and then sec the equivalent Flhnfflhelt temperature. Use the following formula to make the conversion: F - - y C + 32..F is the Fahrenheit temperature and C is the Celsius temperature.

Now the program runs (In Jgrasp) But when I Enter a number in the fahrenheit box and hit "COnvert' NOTHING happens. I went over my code and I can't find what seems to be the problem...I tried changing

ActionListener Listener = new ConvertListener();
convertBtn.addActionListener(ConvertListener); <----- I tried changing ConvertListener to just Listener but it gives me more problems
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

[code]....

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Converting Fahrenheit To Celsius

Oct 1, 2014

I'm new to coding and we have an assignment for class to convert fahrenheit to celsius so far this is what i have:

import java.util.Scanner;
public class Lab5 {
public static void main(String[] args) {
//variable dec
Scanner scan = new Scanner(System.in);
double input;

[code]...

This is what he wants us to do "Write a method name celsius that accepts a Fahrenheit temperature as an argument. The method should return the temperature, converted to Celsius. Demonstrate the method by asking the user a temperature value to convert. Then below the result, call a loop that displays a table of the Fahrenheit temperatures 0 through 20 and their Celsius equivalents."

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Degrees To Fahrenheit Converter

Mar 2, 2014

I am trying to teach myself a bit of java and came across the following line of code in the degrees to Fahrenheit converter tutorial:

int tempFahr = (int)((Double.parseDouble(tempTextField.getText()) )

* 1.8 + 32);

I know what the code does in that it is getting the value that the user has input in text field tempTextField and is applying the mathematical calculation to convert to Fahrenheit and assigning the result to the variable tempFahr.

I am guessing any value input into a text box is considered a string?I am guessing that Double.parseDouble takes in a string and converts it to a double.I am assuming that by simply putting (int) in front of

(Double.parseDouble(tempTextField.getText())) * 1.8 + 32)

that it calculates the value and converts it to an int?The tutorial says this example is not localizable because the parseDouble method is not localizable - what does it mean by localizable?

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Temperature Conversion Celsius To Fahrenheit

Jun 16, 2014

I have followed the instructions carefully but the conversion values are not correct.

Write a program that displays a table of the Celsius temperatures 0 through 20 and their Fahrenheit equivalents. The formula for converting a temperature from Celsius to Fahrenheit is
F - | C + 32
where ¥ is the Fahrenheit temperature and C is the Celsius temperature. Your program must use a loop to display the table.

Code

public class TempConversion
{
public static void main(String[] args) {
for(double i = 0; i <= 20.0; i++) {

[Code] ....

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Initial Template Which Converts Fahrenheit To Celsius

Oct 20, 2014

I am new to Java, programming, and intelliJ. I am trying to make a BMI Calculator using this code as my initial template which converts Fahrenheit to Celsius.

import javax.swing.JFrame;
public class Fahrenheit
{
//-----------------------------------------------------------------
// Creates and displays the temperature converter GUI.
//-----------------------------------------------------------------

[code]....

I created a local field within BMIButtonListener for weight, height, resultLabel, and was able to compile but it did not calculate and listed exceptions.

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Store Celsius And Fahrenheit Values Equal To One Another Using Loop

Sep 29, 2014

Write java program using table that stores celsius and farenheit values that are equal to one another using a loop. use C 0-20 and convert to farenheit.

I have to use doubles for Celsius and Fahrenheit and in the formula. I get a runtime error with the following displayed:

I will display a table of temperatures in their Celsius and Farenheit equivalents.

celsiusfarenheit

import java.util.*;
import java.lang.*;
import java.io.*;
class TemperatureConversion {
public static void main (String[] args) throws java.lang.Exception {
double celsius;// Temperature in degrees Celsius minimum
double farenheit;// Temperature in degrees Fahrenheit

[Code] ....

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Program Converting Fahrenheit To Celsius Using For Loop (will Not Convert)

Sep 13, 2014

I am trying to write a program converting Fahrenheit to Celsius using a for loop. I get it to run and Fahrenheit goes to a hundred. My issue is that the Celsius just says 100 down the column and is not converting. I have tried messing with it, and can not figure what is wrong with it.

import java.util.Scanner;
public class Controlstatement {
public static void main(String[] args) {
double F = 1.0;
double Celcius = 100;
System.out.printf("%s%20s", "Farenheit", "Celcius" );
for (int Farenheit = 0; Farenheit <= 100; Farenheit++) {
F = Celcius * (Farenheit - 32 * 5.0/9.0);
System.out.printf("%4d%,20.2f", Farenheit, Celcius);
}
}
}

The output looks like this all the way to 100:

Farenheit Celcius
0 100.00
1 100.00
2 100.00
3 100.00

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Confirming Conversion To Compute - Calculate Fahrenheit Or Celsius Value

Sep 28, 2014

<import javax.swing.JOptionPane;
public class TempCalc {

public static void main(String[] args) {

//Confirming which conversion to compute.
String FarOrCel = (JOptionPane.showInputDialog("Would you like to calculate a Farenheit value or a Celsius value? (Enter Farenheit or Celsius)");

[Code] ....

So I've been trying to come up with a Farenheit to Celsius converter and back. However, whenever I run the program in JCreator it never recognizes the string "Farenheit". Even if I put that exact thing (I copy/pasted from the if (FarOrCel == "Farenheit")) it keeps asking me for a Celsius value.

[quote name='INNOCENTREAPER##!' date='28 September 2014 - 07:40 PM' timestamp='1411958437' post='2057072']

<import javax.swing.JOptionPane;
public class TempCalc {
public static void main(String[] args) {

//Confirming which conversion to compute.
String FarOrCel = JOptionPane.showInputDialog("Would you like to calculate a Farenheit value or a Celsius value? (Enter Farenheit or Celsius)";

[Code] ....

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Take Input Of Temperature In Fahrenheit And Convert It To Celsius And Kelvin

Oct 28, 2014

I’m trying to write a program in Java that will take the input of a temperature in Fahrenheit and convert it to Celsius and Kelvin. This is what I have so far but when I run the program on Eclipse it says the temp. in Celsius is infinity and the same for kelvin. Why is it not preforming the operation and spiting out the correct numbers?

import java.util.Scanner;
public class Temperature {
public static void main(String[] args) {
// This program converts temperatures from Fahrenheit to Celsius to Kelvin.
double temperature1;// operands
double temperature2;
double temperature3;

[Code] ....

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Write A Program To Print Out Fahrenheit-Celsius Conversion Table?

Oct 14, 2014

This is my program

import java.util.Scanner;
import java.text.DecimalFormat;
public class Lab6 {
public static void main(String[] args) {
int F;
double C = 0;

[Code] ......

output

0 1 2 3 4 5 6 7 8 9
0 degree Fahrenheit equal to :-00.00 degree Celsius
1 degree Fahrenheit equal to :-00.00 degree Celsius
2 degree Fahrenheit equal to :-00.00 degree Celsius
3 degree Fahrenheit equal to :-00.00 degree Celsius
4 degree Fahrenheit equal to :-00.00 degree Celsius
5 degree Fahrenheit equal to :-00.00 degree Celsius
6 degree Fahrenheit equal to :-00.00 degree Celsius
7 degree Fahrenheit equal to :-00.00 degree Celsius
8 degree Fahrenheit equal to :-00.00 degree Celsius
9 degree Fahrenheit equal to :-00.00 degree Celsius

I don't know why the program is not calculating the C degree ?

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Simple Program In Java (Eclipse) That Converts Fahrenheit To Celsius

Apr 10, 2014

I've made a simple program in Java (Eclipse) that converts Fahrenheit to Celsius.The class is:

Java Code: package ehu.student;
public class ConversorTemperaturas {
/*--------------------------------------------------------------*/
/*Clase que dado una temperatura en Fahrenheit la canvierte en C*/
/*--------------------------------------------------------------*/
public float farenheit2celsius (float d){
float celsius, aux;

[code]...

When I write t.farenheit2celsius(25.6), appears the following error: "The method farenheit2celsisus(float) in the type ConversorTemperaturas is not applicable for the arguments (double)"If i change in the class the type float for double there is not problem. Why can't i use the type float?

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Converting Celsius To Fahrenheit And Vice Versa Using Methods And Loop

Oct 13, 2014

I need to do a conversion of Celsius to Fahrenheit and viceversa using methods and a for loop. The methods are public static double celsiustoFahrenheit (double celsius) and public static double Fahrenheittocelsius (double fahrenheit). It gives me weird numbers and i have to have some format that you can see attached ....

package temperatureconverter;
import java.util.Scanner;
public class TemperatureConverter {
public static void main(String[] args) {
Scanner corvette = new Scanner(System.in);
System.out.printf("%12s%12s","Celsius","Fahrenheit");

[Code] .....

Attached image(s)

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May 4, 2015

I am having calculation issues converting Fahrenheit to Celsius. The Celsius to Fahrenheit is working properly.

private void convertButtonActionPerformed(java.awt.event.ActionEvent evt) {
int tempFahr = (int)((Double.parseDouble(tempText.getText()))
* 1.8 + 32);// Calculate Fahrenheit to Celsuis:
fahrenheitLabel.setText(tempFahr + "Fehrenheit");
}

[code]...

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Feb 15, 2013

This program requires knowledge of manipulation of Java String objects and methods. It also requires knowledge of Number System Conversions.

// Lab16MATH05st.java
// The Number System Converter
// This is the student, starting version of the Lab16MATH05 assignment.

import java.util.Scanner;
public class Lab16MATH05st
{
public static void main (String args[])
{
System.out.println("Lab16MATH05 - Number Conversion Program

[code]....

90-Point Version Specifics: The 90-point version requires that you write both the fromHexToBin and fromBinToDec methods.

90-Point Version Output

95-Point Version Specifics {The 95-point version requires everything from the 90-point version and adds the fromBinToHex method. For this version, you may assume that the binary number will have a multiple of 4 bits.

95-Point Version Output

100-Point Version Specifics: The 100-point version requires the same methods as the 95-point version; however, the fromBinToHex method needs to be improved so it can convert regardless of the number of bits.

100-Point Version Output

105-Point Version Specifics: The 105-point version requires everything from the 100-point version and adds the fromDecToAny method. For this version, the method needs to be able to convert from decimal to any base between 2 and 10. Base 16 is not required for this version.

105-Point Version Output

110-Point Version Specifics: The 110-point version requires the same methods as the 105-point version; however, the fromDecToAny method needs to be improved so it can also convert to base-16.

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The textfield is for user entry of any type of data. The first combobox is for the user specifying to the program what type of data he or she entered. The second combobox is for the user to choose what he wants that data converted to. The button is to convert it. The south side has a textarea that gives out the results. Please note that only some of the conversions work so far. There are comments in the code to label which methods do what converisons. Need to find a method that will convert from hex to binary, what is wrong with the current method.
 
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
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I'm sure the solution is simple, but I cannot find it.

/*reads a hexadecimal number input by the user and gives the corresponding base-10 value
*/

public class HexConverter
{
static int i; //used to keep place in the hexadecimal sequence given by user
public static void main(String[] args) {
//declaration of variables
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import java.util.*;
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I commented out the hexadecimal portions.How would I go about coding for letters?

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import java.awt.Container;
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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
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