Java programming, I decided to write a code today that would convert decimal numbers to hexadecimal numbers. Unfortunately, it does not compile. The error message is "cannot find symbol - variable A", and might be the same error for the other variables B,C,D,E,F.
Here is my code:
public class dec2hex
{
public static void main (String [] args)
{int nbr = 99;
char a = A;
char b = B;
char c = C;
import java.util.Scanner; public class FindHexString { public static void main(String[] args) { String hexString = ""; //output a hex string int decNumber;//decimal number to be converted int storeInput; //copy f input decimal number
[Code] ....
I am trying to figure out how to convert from decimal to hexadecimal without using the java library function. This is just a guess. I could be wrong.
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.
Given a Numbers instance, whose fields are arrays of all the built-in Java numeric types (int, long, float, double, big-decimal, etc), write a method to sort all the numbers into a master list, and then print out the numbers where the number of digits past the decimal point is equal to the index of the number in the master list.
Is there a function in Java that will give me just the numbers after the decimal? I tried Decimalformat but couldn't get it to work. Here is what I have so far; however, I think I might be on the wrong track.
public class Numbers { public static void main(String[] args) { Byte bNum = new Byte((byte) -50); Integer iNum = new Integer(168); Long lNum = new Long(100000L); Short sNum = new Short((short) 10000); Float fNum = new Float(12.19f); Double dNum = new Double(23.123); BigDecimal bd = new BigDecimal("3.14159265358979323846");
This problem is from Java . It asks me to convert a binary number in to decimal. How to program this in java? I am not able to find an effective algorithm to convert in to Java.
I am working with a program I wrote for class. I got it to compile and do what I want, But I was wondering how I can format my methods to to display a decimal with 1-2 decimal places. Would I create a method in my NumberAnalysis class to do it for me? Or would I declare an instance of the DecimalFormat class in my main method?
import java.util.Scanner; //Needed for Scanner Class import java.io.*; //Need for File and IOException import java.text.DecimalFormat; public class Ex8_11 { public static void main(String[] args) throws IOException{ { DecimalFormat decformatter = new DecimalFormat("#0.00");
[Code] .....
This is my output:
Lowest Number: 1.09 Highest Number: 82.76 Total Number: 367.89000000000004 Total Average Number: 30.657500000000002
Think I just solved the answer to my own question, I did it by declaring double variables in my main method and called the methods and instantiated the variables into the methods... Is there a better way to do this?
package lesson4.skowronek; import java.util.Scanner; //Needed for Scanner Class import java.io.*; //Need for File and IOException import java.text.DecimalFormat; public class Ex8_11 { public static void main(String[] args) throws IOException{
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?
for (int i = 0; i < letters.length; i++) { double relativeFreq = (onesAverage()/letters[i]); char a = characters.charAt(i); double j = score[i]; System.out.printf();//ToDo
Above is my current code. Basically- There is a string called characters of length 26 (1 char for each letter in alphabet), a double relativeFrequency value which does a calculation and the end result is a number with lots of decimal numbers. The score array has set double values within the array.
What I want to do is create a print f statement where I print out each of the values I initialized above WITH specific amounts of spaces in between. So it should be in this order:
a (spaces) j (spaces) relativeFreq (newLine).
Between J and relativeFreq there should be 4 spaces, however if the value in relativeFreq is greater than 10 (it won't be greater than 100)- then there should be 3 spaces. Everytime I try to create a printf statement my code ends up crooked for some of the values.
for (int i = 0; i < letters.length; i++) { double relativeFreq = (onesAverage()/letters[i]); char a = characters.charAt(i); double j = score[i]; System.out.printf("%c %.4s %.4s%n",a, j, relativeFreq);
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 String hexgiven; //the hexadecimal sequence given by user
I am writing a program that converts any base 10 number to bases 2-16. I have the code for everything up through hexadecimal conversion, for that requires the use of letters. I understand an array list may be of use however I do not understand how to use that in this code. Below is what I have so far
import java.util.*; import java.io.*; public class convertBase { public static void main(String[] args) { int base; int number; String newNum;
[code].....
I commented out the hexadecimal portions.How would I go about coding for letters?
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).
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).
I'm having some trouble with a code I am writing for class. I had an 2 errors like this before this one and fixed it by changing int avgRe, avgMiles =0; to double. Now I am getting this error and am stuck on what I need to change. Here is the code:
import java.io.*; import java.util.*; import java.text.*; public class Reimbursement_3_09 { static Toolkit tools = new Toolkit(); public static void main (String [] args) throws Exception {
[Code] ....
This is my error:
[code=Java] Reimbursement_3_09.java:33: error: incompatible types: possible lossy conversion from double to int summary (outFile, totalAmount, ctrMiles, ctrMilesgt0, avgRe, avgMiles); ^ Some messages have been simplified; recompile with -Xdiags:verbose to get full output 1 error
When I try to convert this value, "Testingu2120" (along with UTF coed u2120)comes as a string as part of SOAP response. I need to convert this UTF-8 characters in to a symbol, in this case it is SM (Service Mark) symbol and show it on the UI.
How can we achieve this in JAVA?
I have four different UTF-8 character set to convert.
I need to convert the LDIF data file to CSV format using Java. IS there any supporting JAR's, which we can use for the LDIF data file reading and parsing. Which is the best jar to use.
final ServerSocket serverSocketConn = new ServerSocket(9000); while (true) { try { Socket socketConn1 = serverSocketConn.accept(); new Thread(new ConnectionHandler(socketConn1)).start();
[Code] .....
I managed to convert this final DatagramSocket serverSocketConn = new DatagramSocket (9000);
Now I am stuck here
Socket socketConn1 = serverSocketConn.accept(); new Thread(new ConnectionHandler(socketConn1)).start();
Can I use this or I need to create a manual thread pooling for UDP ?
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);
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: ");
