I know how to do this program it is just not coming to me. The whole point is to calculate and display the base (base-2 or binary, base-8 or octal and base-16 or hexadecimal) in representation of 'N'. The symbols A, B, C, D, E, F should display 10, 11, 12, 13, 14, and 15 in hexadecimal system.
import java.io.*;
import java.util.Scanner;
public class ChangeBase
{
public static void main(String[]args) {
double num;
[Code]...
I am writing a program to convert a base 10 integer to any base 2-16. Here are the terms:"The method is to convert the decimal value the user selected into whatever base the user selected and print the converted value one place value at a time by using an index into an array of characters 0-9 amd A-F that is initialized to contain those characters.In the method you will find the largest place value (i.e. power of the base) that will divide into the decimal number.
Then you can set up a loop that will operate from that power down to and including the 0th power to determine how many times each place value goes into the decimal number. Using the loop counter, index into the character array to print the character that corresponds to the quotient number and then subtract the product of the place value and the quotient from the decimal number. With the power (loop index) decreased, repeat until you finish the 0th place value. Here's what I have so far:
import java.io.*;
import java.util.Scanner;
public class ConvertIt
{//start program
public static void main(String[] args)
{//start main
Scanner input = new Scanner(System.in);
System.out.println("Enter a positive integer from 0 to 10000.");
int number = input.nextInt();
[code]...
So i'm writing a for loop to convert any number entered to base 10 with any base provided as well. My code does not work because I need a way to reverse the code order, so the new number is printed correctly with the given base. My code so far:
public static void main (String[] args) {
Scanner kb = new Scanner (System.in);
System.out.print("Enter a number :: ");
int numOriginal = kb.nextInt();
System.out.print("Enter a base :: ");
int base = kb.nextInt();
[Code] .....
newBase has a problem with how it calculates the new number, looking for correct newBase code for conversion?
The idea behind this program is that the program prompts the user to input an initial base (2-36), which checks to ensure that it is a valid int, then asks for a number to convert (which is taken as a String), then it asks which desired base the user would like to convert said number to. I have a basic program that is not complete, but allows me to do a few conversions using convertTo. I believe that I am going to have abandon this method and try mathematically converting every number. This leads me to what I can and cannot do. I am unable to use the initialBase as a condition to know what kind of number i an converting. For instance, I don't know how to make program know that if "2" is the initialBase, that that means that the String is a binary number. THAT is what I'm having problems with.
Here is my initial program that has a few things that are copied and pasted from other bits of my code in my program:
XML Code: Url...
I have broken down what I (think I) need to do here: Check to see if the input base is 2, 8, 10, 16, or 32. Hint: Put the possible bases in an array, and check the input base against the array. Check to see if the input number is valid for the base. Hint: Create a String "0123456789ABC...V" and compare each input character with the first "base" characters of the String. Check to see if the output base is 2, 8, 10, 16, or 32. Hint: Use the same possible bases array you used in step 1 to verify the input base.Check to see if the input base is equal to the output base. If so, print the input number. Perform a conversion from the input base to base 10. Perform a conversion from base 10 to the output base. You do this in 2 steps because it's easier to check each conversion separately.Output the converted number.
So I have to write a java program that converts hexadecimals to decimals without using the whole "integer.parseInt(AB1, 16)" method. I tried looking up how to do this but every forum/site I went to used this same method.
View Replies View RelatedWe were asked to do a program in java that could convert Base n to Base m. and im really having trouble with it.
View Replies View RelatedI am struggling getting my java app to open a console window on either MacOS or windows and run a command. On windows I can get the cmd.exe program to open, but it won't execute the command. On MacOS, I cannot get it to even open the terminal.
String run = "c:
s34bil.exe
elap5.exe" + in + rst + out; //in, rst, out are parameters for the relpa5.exe file.
try {
Runtime rt = Runtime.getRuntime();
rt.exec(new String[]{"cmd.exe","/c",run,"start"});
} catch (IOException ex) {
Logger.getLogger(issrsUI.class.getName()).log(Level.SEVERE, null, ex);
}
I had to write a program for class to request user input for base salary, number of years worked, and total sales. Then use the data to find out the employee's paycheck when including a bonus. I have a few issues with the code, as I have one bug, then it won't calculate anything. what I'm missing?
package chapterone;
import java.util.Scanner;
public class Examplelab {
static Scanner console = new Scanner(System.in);
public static void main(String[] args){
double baseSalary;
double noOfServiceYears;
double totalSales;
[Code]....
I am using NetBeans IDE 8.0.2 to program Java code. I am a beginner in Java.
Instead of getting two decimal places after the point, I am getting three despite using the code format for two ("##.##"). Actually, this happens even if I remove the format code between the quotes. It is as if the program cannot see the format code. Why this happens ?
Here is the relevant program code:
private void convertButtonActionPerformed(java.awt.event.Action Event evt) {
double inputNumber = 0;
// sets the decimal format
[Code]....
I'm trying to convert an octal number into a decimal number. I keep getting a big error that says java:63: error: class, interface, or enum expected. i need to use a public static int convert ( int octalNumber ) along with a public static void main ( String args[] ).
Here is my code. />
[public static void main ( String args[] )
{
int foo;
int valid = 0;
Scanner sc = new Scanner (System.in);
System.out.print ("Enter up to an 8-digit octal number and I'll convert it: "); foo = sc.nextInt();
[code].....
so I need my program to print in decimal format and I keep getting an error saying that it cant find symbol "decimalFormat". here's what I have so far.
import java.util.Scanner;
public class GPACalculator {
public static void main(String[] args) {
int creditHours = 0;
int gradePoints = 0;
[Code] .....
I'm working on creating the Binary to Decimal program . hat is wrong with this part of my code. Why does it not take you into the loop.
import java.util.Scanner;
public class question5 {
public static void main(String[] args) {
System.out.println("Enter a Binary number. "); // collect
Scanner keyb = new Scanner(System.in); //
[Code] ....
How do I get the code to use decimals? Also whenever you input 1, 2 or 3 as one of the operators, it always does that operator as well as the 4th operator at the end. So it always does subtraction. However when you use 4 as the only operator it works perfect.
import java.util.Scanner;
public class Program05 {
public static void main(String[] args) {
Scanner stdIn = new Scanner(System.in);
double left;
double right;
[Code] ......
I'm having trouble formatting my output and issues with the decimal places. Here's my code:
import java.util.Scanner;
import java.text.DecimalFormat; // Imports DecimalFormat class for one way to round
public class lab3 {
public static void main(String[] args) {
String heading1 = "Hour", heading2 = "Distance Traveled";
int timeElapsed, hour, speed;
[Code] ....
And here's my output (Click on the image since it's pretty small):
javaIssues.png
Issue:
1) The Hours 2 and 3 aren't aligned to 1.
2) The 80 and 120 in Distance Traveled have 6 decimal places when it should not have decimals.
Ex. If I type 5943, the program will say
mill = 5
hun = 9
ten = 4
uni = 3
get the picture I had to translate the decimal value names from a different language.
This is what I have tried...,
Java Code:
import java.util.Scanner;//Permite el uso de leer el teclado del usuario
public class DeterminarValorDecimal//Nombra el documento
{
public static void main(String [] args)//Podemos ver la clase
{
[Code].....
But what this does is I have to enter the single digits one by one. I want to be able to type the whole number. Is there a method that reads the length of the whole number and lets me classify each digit so I can do what I want to do?
I'm using eclipse. I'm going to get straight to the point and give all the info I can, if the values in the first code box are used, shouldn't these values be left after all in the second box is done:
remainder=23, arr[0]=100, div=23/10=2.3, whole=2, and decimal=3?
When I use this code, div comes out to be just (2.0).
Java Code:
int leng=10;
arr[0]=123; //int
arr[1]=100; //int mh_sh_highlight_all('java'); Java Code: if (arr[0]!=arr[1]){
int remainder=arr[0]-arr[1];
arr[0]=arr[0]-remainder;
double div=remainder/leng; //double div=Double.valueOf(remainder/leng);
int whole=(int) Math.floor(div);
int decimal=(int) ((div-whole)*leng); mh_sh_highlight_all('java');
I'm not sure were I'm going wrong in how div is being calculated, but I ultimately need div to be 2.3.
I've also used the second option commented out which still gives (2.0).
Here is my code and i want to convert number into 2 decimal but this code not give me result how to check my code.
import javax.swing.JOptionPane;
public class showtime{
public static void main(String[] args){
double total_mili=System.currentTimeMillis();
JOptionPane.showMessageDialog(null,total_mili, "Total milisecond",JOptionPane.INFORMATION_MESSAGE);
double seconds=total_mili/60;
double sec=(double)(seconds * 100) / 100.000;
JOptionPane.showMessageDialog(null,seconds, "Total Second",JOptionPane.INFORMATION_MESSAGE);
JOptionPane.showMessageDialog(null,sec, "Total Second",JOptionPane.ERROR_MESSAGE);
}
}
I need to change the program below to an "array"....
public class RecursiveFibonacci {
public int fibonacci(int n) {
int result;
if (n == 1 || n == 2)
result = 1;
else {
int n1 = fibonacci(n-1);
int n2 = fibonacci(n-2);
[code]....
I want to programmatically change the default program which an extension is opened in. So .resantic extensions for example to run in my jar file when I double-click on it. I know i need a bat file or exe file because i can't directly run the jar file. But i was wondering if its possible to run it if its an executable jar file. Else i can just make a bat file that runs my program. Also how can i on double click send the path to the file that was clicked in the args[] array so i can open the actual file aswell instead of just opening the program?
View Replies View RelatedSo obviously I'm new to java and i need to write a program that gives exact change in quarters, dimes, nickels, and pennies. For some reason it seems to work correctly but the nickels never is correct and I'm not sure why, seeing as though everything else is.
Java Code:
public class Coins{
private int c;
public Coins(int coins){
c = coins;
}
public void calculate(){
int quarters = c / 25;
[Code] .....
I have this code line:
String sectionText = String.valueOf((int)percents.getYellowPercent());
And I want the integer value to be displayed, instead of double. This works, but when the program rounds the double into integer, if the number is for example 75,56 (this is %) or 3,5 I would like it to be rounded in 76 (or 3,6 for the other example) since as it is at this moment, when all the calculated integers are summed, the result is not 100%, but 99%.
I would like to make an incremental change to an existing Java program. And the program has been installed on the user's machine. Now I only want to do an incremental download (to minimize the download time) to update the program.
View Replies View Relatedwrite a program that calculates the change due to a customer by denomination; that is, how many pennies, nickels, dimes, etc. are needed in change. The input is to be purchase price and the size of the bill tendered by the customer($100, $50, $20, $10, $5, $1).
View Replies View RelatedIts just two problems:
1.Write a Java Program that calculates the change for a cashier. The program requests the cost of the item. The user then types in the cost. The program then outputs the cost of the item including the sales tax (use 6% as the sales tax value). The program next requests and recieves the amount tendered by the customer. Finally, the program outputs a summary of all figures, including the amount of change due to the customer. Name the program as Change.java.
This program has the following attributes and methods:
double cost;
double tax;
double payment;
double getCost();
double getTax();
[code].....
2. Create a java program named Numbers whose main() method holds two integer variables. Assign values to the variables. Pass both variables to methods named sum() and difference(). Create the methods sum() and difference(); these compute the sum and difference between the values of two arguments, respectively. Each method should perform the appropriate computation and display the results. Name the program as Numbers.java.
SO for my project, we have to create a program where we input two four letter words, and using a list of words our teacher provided us and only changing one letter at a time, make the words match.For example, you input BALD and CALL and it would output BALD BALL CALLWe have to use recursion to do this, and I'm totally lost as to where to even begin.
View Replies View RelatedI was working on this project, and I have everything working, except that it doesn't change the colors of the shapes in the other window. Here's the code to see what I'm doing wrong:
Java Code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class JDemo {
//Global Variables
static Color color0 = Color.blue; //sets the value in the color0 variable to the method Color.blue .
static Color color1 = Color.red; //Sets the value in the color1 variable to the method Color.red .
[Code] ....
The button0 is supposed to switch the color in window1, and button1 is supposed to switch the color in window0.