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).
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.
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");
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.
I have a problem with functions connected to strings.
I have a random String, e.g. "Hello World!" and I have to change every capital Letter into a small letter and vise versa. This alone would be fairly simple, but I have to do it with two other strings.
lowercase= "abcde...z" and
uppercase="ABCDE...Z". Every small letter stands at the very same position as the capital letter, but in the other string.
There should be a letter for letter search in lowercase and uppercase for the letters of "Hello World".
How I could solve the task, however I need a way to search the first string, here "Hello World", according to position. A statement which does: "Give me the letter of position x". This found letter should be able to be stored in a variable or else be able to be used by another statement. And it should be compatible with a for lope.
From robosoul's response at StackOverflow, I simply inserted a condition for negative integers (line 12). True enough, the code worked and I was able to trace (pen and paper method) how it is converting the 0 and positive integers to words.
However, I am a bit lost on how it is doing the conversion for negative integers. How it is successfully converting the negative?
I'm stuck with the following error message when i try to convert a String to XML and back to a String.
Exception in thread "main" org.w3c.dom.DOMException: WRONG_DOCUMENT_ERR: A node is used in a different document than the one that created it. at com.sun.org.apache.xerces.internal.dom.ParentNode.internalInsertBefore(Unknown Source) at com.sun.org.apache.xerces.internal.dom.ParentNode.insertBefore(Unknown Source) at com.sun.org.apache.xerces.internal.dom.NodeImpl.appendChild(Unknown Source) at com.innovatrail.consulting.xml.XMLTEST2.main(XMLTEST2.java:66)
Below is my Java code snippet: The code syntactically correct except line 66. If you comment out line 66 in the source code, everything works just fine. The XML representation of my input string is denoted by INPUT 1 and that of my output string is denoted by OUTPUT 2.
I am trying to add two bytes together in binary. The problem is that I need to print the carryover also. The printed result should be 8-bits long if the byte or the integer converted in binary is less than 8-bits the empty space should be filled with 0-s. I figured out how to print and add them, the part with the filling the blank with 0-s too. how to print the carryover. For example:
byte x =15; byte y =9; the output will be :
00011110 - carryover x 00001111 y + 00001001 __________________
00011000 - result
import java.util.Scanner; public class Addbytes { public static void main(String args [])
First project here and it has been a steep learning curve. I have some code in the TwoWaySerialComm class that will write to a Com port. In my other class EBIAlarm i have my GUI. The aim of my app is the send strings out of the Com port by pressing Jbutton1-3 I can open the Com port but I don't know how to send the string.
private void DecryptBActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: final String plainText; if (!areKeysPresent()) { // Method generates a pair of keys using the RSA algorithm and stores it // in their respective files generateKey();
[Code] ....
Everytime throwing exception "javax.crypto.IllegalBlockSizeException: Data must not be longer than 128 bytes" in decrypt method.
I want to practice chopping my code into small objects so they can be easily reused and replaced/maintained etc. So I'm looking to separate this small program into three separate files, one main with the main function to make a window, one to make the DrawPanel for "animating", and one for the controlling with the KeyListener.
import javax.swing.*; //Graphics API import java.awt.*; //BorderLayout API import java.awt.event.KeyEvent; import java.awt.event.KeyListener; public class KeyAnimate { int x = 0; //X Coords int y = 0; //Y Coords int z = 0; //Z to Keep going forever
for (int w=0;w<bi.getWidth();w++) { for (int h=0;h<bi.getHeight();h++) { int color = bi.getRGB(w, h); color = color << 5; bi.setRGB(w, h, color); } }
I am using a solid green image so
11111111000000001111111100000000
I just wanted to see how it looked so bumped it over 5 places (obviously changing the color). To my surprise, there was no added transparency. I mean moving it to the left would make the alpha:
11100000
I am thinking that setRGB() doesn't effect alpha. Is this accurate?Tested it and in fact setRGB has no effect on the alpha bits. So now the question is how can I gain access to them. I am going to look into the writable Raster API. Perhaps, I can also use a modified awt to access directly OS data.
I am trying to understand what ivor is saying about the and, and or operators and the mask. If I understand it correctly the & operator prevents you from changing a bit that is one when a mask is involved and changes all others to 0 and the | operator forces a bit to 1 when the mask is 1.
My question is when would i need to actually use the & ,| operators ?when will i need to manipulate the bits in a variable?
Whenever i perform any operation in my application Live Bytes of a particular Instance of a class increases by 1000.Although i perform the same operation everytime it always increases by 100 or 1000.Is this a memory leak or does these instances increase everytime we perform an operation.
I have to divide a text file into blocks of 128 bits. I think i must use the ByteArrayInputStream and ByteArrayOutputStream classes. is there any website showing how to user these two ByteArrayInputStream and ByteArrayOutputStream classes in detail. or it would be much better if you could show me a portion of the code.
I am having an array of strings and i want to find out whether these strings contained in the array contain a similar character or not.For example i am having following strings in the array of string:
aadafbd dsfgdfbvc sdfgyub fhjgbjhjd
my program should provide following result: 3 because i have 3 characters which are similar in all the strings of the array(f,b,d).
I am designing a program in-order convert Binary to Decimal values with added features:
Rejecting binary values longer than 32 bits
Prompting the user to make multiple entries after completing the binary to decimal conversion of their first entry. I was trying to code this in Nested For Loops, but I don't know if I've really done that.
Here is what i have so far.
public class BinaryToDecimal { public static void main(String[] args){ Scanner scan = new Scanner(System.in); String binary; int decimal=0b10, i, rem; boolean isBinary = true;
I can sort strings in a collection by uppercase and then lowercase though I was wondering if there is any way of doing it in reverse, sorting by lowercase then by uppercase.
I am trying to write a program that will generate a QR Code from an input text and also display some information about the input/output bits. So far I have created the frame and what to do next. And I'm not sure if I am on the right track since my level of programming is not that great. By the way, I am using zxing libraries from GitHub. I know, there are plenty of generators online for the QR Code, but that is not what I am looking for. As you can see on the attached image, I am more interested in the efficiency of encoding 2D data. Also, I noticed that almost all the online projects regarding 2D codes are for Android. Which is not very useful.
One of the random number generators in Java extract the higher-order bits of the random number in order to get a longer period.
I'm not sure if I understand how this is done. Suppose that the random number r = 0000 1100 1000 1101. If we extract the 16 most significant bits from r; is the new number r = 0000 1100 or r = 0000 1100 0000 0000?
when open file "rahul.txt"so it shows characters which i stored not byte code i want to stored in file byte code. Now i have a problem for file handling it is not store bytes into myfile. it stores character not bytes.
package com.fileh; import java .io.* public class Writedata { public static void main(String args[]) { try{ FileOutputStream fout= new FileOutputStream("rahul.txt"); String s="my name is rahul"; byte[] b =s.getBytes(); fout.write(b); fout.close();
[code]....
and second problem is that when i use FileInputStream to read file rahul.txt so it did not read .
