Java Program To Convert Integer To Roman Numbers And Vice Versa?

Aug 20, 2014

java program to convert integer to Roman numbers and vice versa?

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Input Binary Value And Convert It Into Decimal And Vice Versa

Jan 9, 2015

I am new to java programming and using bluej for programming and i have tried this question what i have have given in title ... How to do the following question without using strings.

Write a java program to input a binary value and convert it into decimal and Vice Versa. Without using String. Please make it for blue j format.

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How To Convert Integer To Roman Numerals

Aug 20, 2014

I don't need the code , I just want to try on my own ....

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Converting Set Into Range Statement And Vice Versa

Apr 14, 2014

I have a Set S=[1,2,3,4,5,10,12]

Now I want to convert this Set into a Range Statement which is of Form as follows...

Desired Range Statement Form is = 1..5/10/12.

Since 1 to 5 are contigious in my Set, they are represented as 1..5 and 10 and 12 are single non contigious elements they are given a single element with a union (/) Symbol.

Similarly, I want to convert the RangeStatement 1..5/10/12 to Set S=[1,2,3,4,5,10,12].

DO we have any efficient method to o this in Java? if I need to write my own method or is there any inbuilt method to do this.

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Converting Strings To Bits / Bytes And Vice Versa

Feb 23, 2014

I have:

Java Code: String s = "111100100111011011000010110011101"; mh_sh_highlight_all('java');

I am trying to convert that to bits/bytes.

I need to make that into a series of bits with the same exact values..."1" = a 1 bit, and "0" = a 0 bit.

Remarkably, I haven't been able to find much on this sort of conversion - possibly I am just not searching with the right keywords? As typically, stackexchange or other parts of the web have the same question that I have, asked (and answered) by many others.

How do I go about doing this?

Furthermore, how would I go about saving this to a file - and are there already good "kinds" of files to save this into. If not, how do I go about making my "own" type of "file."

CONTEXT:

I've written a compression system. To keep things simple, I've been using a string to hold the 1s and 0s, so that debugging is simpler, and overall, everything is easier to write. Now, however, my algorithm is finished - and I'm moving on to create a GUI and a working system. This is the last step that I need for the non-GUI stuff (which I'm writing through javafx by the way - is this the right thing to use? I've been told that that is where people are moving towards. Away from swing).

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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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Convert Roman To Ordinary Conversion Without Using Any Predefined Methods

Feb 25, 2015

convert roman to ordinary conversion without using any predefine methods,where we are giving input thru command prompt

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Allow User To Enter Roman Numeral And Then Outputs Integer Number Value - While Loop

Feb 7, 2015

Write a program called RomanNumeralHelper that allows a user to enter a roman numeral and then outputs the integer number value. Use a Scanner to accept command line input from the user and continually ask for a roman numeral until the user enters Q (or q) to stop. Your solution should NOT use a switch statement.

Here is sample input / output:

Enter a roman numeral [Q | q to quit]: III
>> 3
Enter a roman numeral [Q | q to quit]: IV
>> 4
Enter a roman numeral [Q | q to quit]: V
>> 5
Enter a roman numeral [Q | q to quit]: Q
Good Bye!

This is what I have so far in my code, but I cant get what the user inputs when I want it to output the number.

import java.util.Scanner;
public class RomanNumber4
{
public static void main(String[] args) {
// obtain input from command window
Scanner input = new Scanner(System.in);
 
[Code] ....

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Roman To Arabic Numbers Converter

Oct 5, 2014

I'm trying to do a program to convert roman numbers to arabic numbers. My problem is that I don't have the right to use Methods and Arrays. Only loops and if/else.

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Java Algorithm - Convert String Of Numbers Into Text

Feb 18, 2014

I need a Java algorithm that converts a string of numbers into text. It is related to how a phone keypad works where pressing 2 three times creates the letter "c" or pressing 4 one time creates the letter "g". For example a string of numbers "44335557075557777" should decode where 0 equates to a space.

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Program To Convert A Base 10 Integer To Any Base 2 - 16

May 5, 2013

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]...

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Program To Add 2 Roman Numerals Together And Return The Results

Feb 26, 2014

Writing an program to add any 2 given Roman numerals together and return the results.

[I don't want to convert Roman numbers to decimal numbers & then add together, then convert in to Roman numerials ]

Is there any direct way to add roman numerials?

For example: I + I = II
III + I = IV

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Ask User To Enter Number From 1 To 10 And Program Will Display Roman Numeral

Feb 6, 2014

I am trying to write a program that asks the user to enter a number from 1 through 10 and then the program will display the roman numeral for that number.

I am also adding a error message in which i haven't yet because im still trying to figure out how to the program will do the roman numeral.'

I have used the if and else if. but when i input a number it just repeats the number back to me.

The program cimpiles but it doesn't do what i want. here is what i have so far. how can i get the program to display the roman numeral after the number is entered.

import javax.swing.JOptionPane;
public class Romannumeral
{
public static void main(String[] args)
{
double number;
 
[Code] .....

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Convert String To Integer

May 21, 2014

I have to make a programm where the user gives you the bank sorting code and the account number and you give him the IBAN. That was so far no problem and I was done within minutes except of one thing that I simply can't figure out even though im trying since weeks. At some point I have to convert a string to integer. My research told me its with parseInt() and I dont get a syntax error when I compile my programm (using BlueJ). But when executing the programm stops and gives me some weird bug message. Here is code and bug message:

Java Code:

public class IBAN {
public IBAN(String Bankleitzahl, String Kontonummer) {
Bankleitzahl=Bankleitzahl.replace(" ",""); // Die Leerzeichen werden entfernt
int Anzahl=Bankleitzahl.length(); // Auf der Variabel Anzahl wird die Anzahl der Zeichen von der Bankleitzahl gespeichert

[Code] .....

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How To Convert Integer To That Many Asterisks

Jan 22, 2015

int a = 5;

//how do I convert a to 5 asterisks '*'?

When I do System.out.println(a); I want there to be 5 asterisks '*****'

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JSP :: How To Convert String Into Integer In JSTL

Feb 17, 2015

I am having problem in converting JSTL variable into integer type in JSP (not using Spring). I am looking to do something like below:

<c:set var="total_amt">${list.totalAmount}</c:set>
<c:when test="${new Integer(total_amt) > 500}">

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How To Convert Formatted String To Integer

Feb 15, 2014

If I use the class DecimalFormat to format long number, how can I convert it back to integer?

DecimalFormat longFormat = new DecimalFormat("#,###");
long testLong=11000;
String strLong=longFormat.format(testLong);
System.out.println("NUM : " + strLong);
//Assume that at this point I don't have
//testLong, I have only the strLong value...
long newLong=Long.parseLong(strLong) * 2; 
//java.lang.NumberFormatException: For input string: "11,000

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Convert Integer List To Int Array?

Sep 24, 2008

is there a way, to convert a List of Integers to Array of ints (not integer). Something like List<Integer> to int []?

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Convert Currency Instance To Integer

Jul 26, 2014

I am working with a JFormattedTextField. After adding the text of the FormattedTextField to an LinkedList i want to read it out and sum it up. So I have a problem to convert the String to and integer...

Example:

23.00 - to 23.00
+ 11.00 - to 11.00
--> 34.00

I have tried it with splitting the string but it didn't work. How to do it?

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Convert Integer To Letter Grades

Jan 31, 2014

/*This program will convert integer grades to letter grades and say how many A's, B's, C's, D's , F's do we have

public class DSlab3 {
private char LetterGrades;
private int IntegerGrades;
//default constructor
public DSlab3() {
LetterGrades =' ';
IntegerGrades = 0;

[Code] .....

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Convert Hexadecimal To Decimal WITHOUT Using Integer ParseInt Method

Mar 12, 2014

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.

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Write A Java Program That Reads A Positive / Non-zero Integer As Input

Aug 1, 2011

Write a Java program that reads a positive, non-zero integer as input and checks if the integer is deficient, perfect, or abundant.

A positive, non-zero integer, N, is said to be perfect if the sum of its positive proper divisors (i.e., the positive integers, other than N itself, that divide N exactly) is equal to the number itself. If this sum is less than N, the number is said to be deficient. If the sum is greater than N, the number is said to be abundant.For example, the number 6 is perfect, since 6 = 1 + 2 + 3, the number 8 is deficient, since 8 > 1 + 2 + 4, while the number 12 is abundant, since 12 < 1 + 2 + 3 + 4 + 6.

SAMPLE OUTPUT:

1.)Input N: 5

5 is deficient.

2.)Input N: 6

6 is perfect.

3.)Input N: 18

18 is abundant.

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Algebra - Perfect Square Java Program / Find Smaller Integer N

Sep 22, 2014

Write a program that prompts the user to enter an integer m and find the smallest integer n such that m * n is a perfect square. (Hint: Store all smallest factors of m into an array list. n is the product of the factors that appear an odd number of times in the array list. For example, consider m = 90, store the factors 2, 3, 3, 5 in an array list. 2 and 5 appear an odd number of time in the array list. So, n is 10.)

so far my program is just like this.

import java.lang.Math;
import java.util.Scanner;
public class PerfectSquare {
public static void main(String[] args) {
Scanner m = new Scanner(System.in);
int Fint;

[Code] .....

how do i make the program find the smallest integer n?

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Using Static Method To Convert A String To Integer Object - Compiler Error

Mar 1, 2014

I am using a static method to convert a string to an Integer object. Next using a instance method to convert Integer object to an int.

Compiler is giving me two "cannot find symbol" errors:

One pointing to the dot operator between "Integer.valueOf(s)"

The other pointing to the dot operator between "obj.intValue()"

I have latest JDK installed: jdk-7u51-windows-x64.exe

Looks like JCL installed correctly with rt.jar file located in "lib" directory under "Program Files"

Following is source code:

Java Code:

public class StringToInt
{
public static void main (String args [])
{
String s = "125";
Integer obj = Integer.valueOf(s);
int i = obj.intValue();
i += 10;
System.out.println(i);
}
} mh_sh_highlight_all('java');

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Java Program To Add Two Numbers?

Jan 30, 2014

I want to develop an simple application using java for a simple porgram for the addition of two numbers.

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Convert Numbers From -999 To 999 In Words

May 19, 2014

I'm very new to Java and need to write a program where the user inputs any number from -999 to 999 and it inputs it in words. For ex -24 entered would print negative twenty four or 800 entered would be eight hundred. I need to have at least 2 methods that need to be returned to the main method. When i compile, it says that cannot convert from void to java.lang.string for all the word = ... in my case statements.

import java.util.Scanner; 
public class NumToText {
public static void main (String args[]){
Scanner input = new Scanner (System.in) ;
System.out.println ("Enter number.");
int number = input.nextInt ();
 
 [Code] .....

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