Not Getting Decimal For Surely Decimal Answer?

Jan 1, 2015

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).

View Replies


ADVERTISEMENT

Formatting User Answer To Two Decimal Places

Nov 20, 2014

I am writing a simple learning program that does basic math. Everything is working as needed except for when it comes to division. I need to know if there is a way to format the users input to two decimal places and that when the program checks the users answer against the division, it gives it a yay or nay. Right now, it wants the answer out to 12 decimal places.

So for 5/3

I would like it to accept the answer 1.67

not 1.666666666667

Is there a way to do this?

View Replies View Related

How To Make Answer To 2 Decimal Points In Java

Jan 18, 2015

I am having trouble figuring out where to put %.2f in my code. I need it to get my answers for surfaceArea and Volume to be rounded to two decimal points. I have everything completed but wherever i put it, it seems to not work.

System.out.println("This program will compute the volume and surface area of a rectangular prism.");
String output;
double length;
double width;
double height;
double volume = 0;
double surfaceArea = 0;
System.out.printf("%.2f", surfaceArea);

[code]....

View Replies View Related

Fraction Calculator Prints Correct Answer But Not In Decimal

Feb 23, 2015

package FracCalc;
import java.util.Scanner;
public class FracCalc {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
 
int n1 = 0; //n1 = first numerator user have to enter
int d1 = 0; //d1 = first denominator user have to enter
int n2 = 0; //n2 = second numerator user have to enter
int d2 = 0; //d2 = second denominator user have to enter
int numeratorAnswer = 0; //calculates numerator of an equation
int denominatorAnswer = 0; //calculates denominator of an equation
 
[code]...

I mean its not that important but i figure it will be better if I could print out the answer both in fraction format and decimal format. while my answer prints in fraction just fine how do i show it in decimal?

System.out.println("");
 
System.out.print("And ");
System.out.print("answer in Decimal is: ");
 
decimalAnswer = ((double)numeratorAnswer/denominatorAnswer);
System.out.println((float)decimalAnswer);

View Replies View Related

Round Decimal Number Into 2 Decimal

Apr 2, 2014

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);
}
}

View Replies View Related

Decimal To Hex - Not Getting Value 0 When Input Is 0

Mar 4, 2014

Why do i not get a value 0 when my input is 0.

import java.util.Scanner;
public class Dec2Hex {
public static void main(String[] args){
int dec;
String hexStr = "";
int radix = 16;

[Code] .....

View Replies View Related

Add A Zero For Decimal Part

Apr 19, 2015

Add the following method to the BankAccount class: public String toString()Your method should return a string that contains the account's name and balance separated by a comma and space. For example, if an account object named benben has the name "Benson" and a balance of 17.25, the call of benben.toString() should return:

Benson, $17.25

There are some special cases you should handle. If the balance is negative, put the - sign before the dollar sign. Also, always display the cents as a two-digit number. For example, if the same object had a balance of -17.5, your method should return:

Benson, -$17.50

Here is my code:

public String toString() {
String result = name + ", ";
if (balance < 0) {
result += "-";
}
return result += "$" + Math.abs(balance);
}

My code only works in case there are full two numbers for the cents part, not for the case when there's only one number. So I wonder how I can add an extra zero when needed.I can get only the decimal part and add a zero if it's less than 10, but I don't know how I can extract just the decimal part from the number. (The balance is just a double and it doesn't have any separate field for dollars and cents).

View Replies View Related

Binary To Decimal Using Array

Jan 28, 2015

I do not know how to convert a reversed array to decimal.

The output should be:

How many digits to convert?
(user will input) ex. 3
Please input digits:
(user will input 3 digits)
ex. 0
1
1
The binary digits are: 110 (<-reversed)
The decimal value is: 6

Here is my code:

package numbersystemconversion;
import java.util.Scanner;
public class BinarytoDecimal {
static {
int digit=0;
Scanner input = new Scanner(System.in);

[Code] ....

View Replies View Related

Numbers After Decimal Won't Add Together For Total

Sep 26, 2014

The code is below and the problem I am having is the numbers after the decimal won't add together for the total I am teaching myself java through liang's 10th edition book and I took one of the sample programs further than what was shown. The one in the book only shows the tax amount I simply wanted to make it so that the purchase amount and the tax amount would add together

package javalearning;
import java.util.Scanner;
public class FindingTax {
public static void main(String[] args){
Scanner input = new Scanner(System.in);
System.out.print("Enter Purchase amount: ");

[code]....

View Replies View Related

Display Decimal Numbers Only

Jul 6, 2014

What code to use to display decimal numbers only. for example 125.50. the program will only display .50

View Replies View Related

Converting Octal To Decimal

Sep 26, 2014

I'm trying to complete a code to convert decimal to octal. however i can't figure out how to print the output correctly. it should be.. Your integer number 160000 is 0470400 in octal. (160000 is the number you input). My code is...

Scanner input = new Scanner(System.in);

int value;
int a;
int b;
int c;
int d;
int e;
int f;
int g;
String result;

[Code] .....

Lastly, my output prints everything correctly, but the input number always is 0.

Ex error: input= 160000

Your integer number 0 is 0470400 in octal.

it should be.. Your integer number 160000 is 0470400 in octal.

View Replies View Related

Program Cannot See DECIMAL FORMAT

May 12, 2015

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]....

View Replies View Related

Decimal Point On Jtextfield

Apr 26, 2014

designing a program which allows you to buy stuff from the jframe with 10x items each with different pricing, so once you click the image button the cost of that is displayed in the textfield, ive been trying to set the jtextfield to a decimal point but have not been able to so far,

if (source == jBSofa) {
System.out.println("Sofa");
{
dTotal = dTotal + 599.99;

jTotal.setText(Double.toString(dTotal));
DecimalFormat myFormatter = new DecimalFormat("#####.#");
String output = myFormatter.format(dTotal);
a visual aspect of it.

View Replies View Related

Convert Binary To Decimal Such As Bin

Sep 20, 2014

I am having an issue with my program. It is supposed to convert from a binary number to a decimal number such as bin 101 = dec 5. my first and foremost issue is that when I use System.out.println(parseBin("101")); it returns 5 as it should. However when I change 101 to 1013 it returns 13??? Why is this happening and why are my exceptions not catching the issue?

//import java.util.Scanner;
public class BinaryFormatException {
public static void main(String[] args) throws BinFormatException{
System.out.println(parseBin("1013"));
//Scanner input = new Scanner(System.in);
//System.out.println("Please enter a binary number using 1's and 0's: ");
//String binString = input.nextLine();

[Code] ....

View Replies View Related

Print Out GPA In Decimal Format

Oct 25, 2014

I need this program to print out the gpa down to 2 decimal places and I can't figure out how to do it. It keeps saying it can't find decimal format and I'm not sure how to define it.

Java Code:

import java.util.Scanner;
public class GPACalculator {
public static void main(String[] args) {
double creditHours = 0;
double gradePoints = 0;

[Code] ....

View Replies View Related

Decimal To Binary - Not Getting Any Input

Dec 13, 2014

import java.io.*;
class Binary_Displaying
{
public static void main(String args[])throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
int d,r,bi=0,i=0,dup;

[Code] ....

I am not getting any output.........

View Replies View Related

How To Add Decimal Format Up To Two Places

Jul 25, 2014

import javax.swing.JOptionPane;
import java.text.DecimalFormat;
public class Sample3 {
public static void main(String args[]){
double amount,iRate,monPay,totalPay;
int years;
String amountStr;

[Code] ....

View Replies View Related

Octal To Decimal Program

Oct 19, 2014

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].....

View Replies View Related

Decimal Values - JOptionPane

Jul 1, 2014

I am a beginner in Java and I am currently learning about JOption pane.Using Strings I am accepting an input from the user and by using the Interer.ParseInt(variable) option I am able to multiply this two strings using the code below.

String Length;
Length = JOptionPane.showInputDialog("Enter the Length");
String Breadth;
Breadth = JOptionPane.showInputDialog("Enter the Breadth");
System.out.println(" Area is " + (Integer.parseInt(Breadth) * Integer.parseInt(Length)));
System.exit(0);

How Do I make my code accept Decimal values. E.g. My Code should accept 10.02 as Length and 20.42 as Breadth and give the product a Decimal.

View Replies View Related

Program To Print In Decimal Format

Oct 24, 2014

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] .....

View Replies View Related

Program To Convert Binary To Decimal

Oct 13, 2014

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] ....

View Replies View Related

How To Display Decimal Place With 100 Digits

Apr 21, 2015

I am currently trying to solve a programming problem on this site, and the problem includes working on a 100 digits of decimal places of a certain irrational number. I tried using BigDecimal class but it displays, correctly me if I am wrong, just 20+ decimal digits. Is there other way to do this?

View Replies View Related

Converting Double Value To A 2 Decimal Place Value

Jan 28, 2015

I am trying to convert the double grossPay to 2 decimal places but cannot get it to work ,I am unsure of the correct way of doing this but this is how far I can get

public static double grossPay(double Orate, double overtime, double salary) {
double grosspay = 0;
grosspay = (Orate * overtime) + (salary / 26);
DecimalFormat df = new DecimalFormat("#.##");
return(df.format(grosspay));
}//closes grossPay method

View Replies View Related

How To Setup Decimal Point For A Result

Apr 18, 2015

Right now it displays a number like this "$25.0" and I want it to display it like this "$25.00" and don't know how to do it.

View Replies View Related

Decimal Format Utility Of Java

Oct 13, 2014

I am working on a program where i calculate a fee using a method. I know i have to import the decimal format utility of java. "import java.text.DecimalFormat;" then i have to create an object for the decimal format. With "DecimalFormat f = new DecimalFormat("0.00");" What i am wondering how do i apply it to my system.out.println statement. I know i have to use for instance f.format(calculateFee()); Is that the right syntax for displaying the results because i generate a syntax error that way.

View Replies View Related

How To Print Double With 2 Decimal Numbers

May 3, 2014

I am trying to cast an integer into a double. it works but I need two decimal number after the dot and for example I can print 7.51 but how can I get it to print 7.50 and not 7.5

public int compareTo(Money o){
int d1 = (this.dollars * 100) + this.cents;
int d2 = (o.dollars * 100) + o.cents;
return d1 - d2;
}

On my main method I have

public static void main(String[] args){
Money money1 = new Money(10, 49);
Money money2 = new Money(2, 99);
System.out.println("result: " + "$" + (double)money1.compareTo(money2)/100);
}

It prints 7.5 but I want it to print 7.50, how do I do this .....

View Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved