How to get 0-padded binary representation of an integer in java?
I think this is a suboptimal solution, but you could do
String.format("%16s", Integer.toBinaryString(1)).replace(' ', '0')
How to get 0-padded binary representation of an integer in java?
I think this is a suboptimal solution, but you could do
String.format("%16s", Integer.toBinaryString(1)).replace(' ', '0')
Pad a binary String equal to zero ( 0 ) with leading zeros in Java
For padding with, say, 5 leading zeroes, this will work:
String.format("%5s", Integer.toBinaryString(data)).replace(' ', '0');
You didn't specify the expected length of the string, in the sample code above I used 5, replace it with the proper value.
EDIT
I just noticed the comments. Sure you can build the pattern dynamically, but at some point you have to know the maximum expected size, depending on your problem, you'll know how to determine the value:
String formatPattern = "%" + maximumExpectedSize + "s";
Adding zeroes to front and end of an integer - binary output
As you say, you were almost done. But the binary encoding wasn't working as expected. Here is my suggestion:
public static void getBinaryMsg(String codedMessage) {
String binary = toBinary(codedMessage);
System.out.println(binary);
}
private static String toBinary(String codedMessage) {
String binary = codedMessage.chars().boxed().map(c -> pad(Integer.toBinaryString(c), 8, '0') + " ").collect(Collectors.joining());
return binary;
}
private static String pad(String s, int n, char c) {
return String.format("%"+n+"s", Integer.parseInt(s)).replace(' ', c);
}
Using Integer.toBinaryString(int i)
you don't have to reinvent the wheel. The only thing you have to add is the padding, to get every binary formatted to eight bits. You did it well according to: How to get 0-padded binary representation of an integer in java?
Java Printing Leading 0's in Binary
Use String format like on this example:
byte b2 = (byte) 2;
String s2 = String.format("%8s", Integer.toBinaryString(b2 & 0xFF)).replace(' ', '0');
System.out.println(s2); // 00000010
Integer.toBinaryString() Loses Leading 0's
I assume that you're looking to have enough leading 0
s to make the length of the String
that is returned from Integer#toBinaryString
8; the following code will achieve this for you:
String binary = String.format("%8s", Integer.toBinaryString(currentByte)).replace(' ', '0');
How to get 0-padded binary representation of an integer in R language
The R.utils
package has the function intToBin()
that can be combined with sprintf()
to left pad the result.
convert_to_b <- function(n, K)
{
n <- R.utils::intToBin(n)
if (K < nchar(n))
K <- nchar(n)
sprintf("%0*d", K, as.integer(n))
}
convert_to_b(3, 7)
[1] "0000011"
Converting a decimal number to binary in java not showing leading zeroes
I assume you are looking to format all your answers as shorts (16 bits).
In this case, simply check the length of your current string, and add on zeroes as needed.
int zeroesRemaining = 16 - result.length();
for (int i = 0; i < zeroesRemaining; i++) {
result = "0" + result;
}
Alternatively, if you want to do it faster, use a StringBuilder.
int zeroesRemaining = 16 - result.length();
StringBuilder tempBuilder = new StringBuilder(result);
for (int i = 0; i < zeroesRemaining; i++) {
tempBuilder.insert(0, 0); //inserts the integer 0 at position 0 of the stringbuilder
}
return tempBuilder.toString(); //converts to string format
There is also probably a formatter that could do this, but I don't know of such.
If you want to change the number of zeroes to be the closest integer primitive, just set zeroesRemaining to be the (least power of 2 that is greater than the number of bits) minus (the number of bits).
One 0 is missing in my binary - how can I fix it?
Instead of binary = Integer.toBinaryString(character);
use the following expression:
binary = String.format("%8s", Integer.toBinaryString(character)).replace(' ', '0');
Related Topics
Split String With Dot as Delimiter
MySQLsyntaxerrorexception Near "" When Trying to Execute Preparedstatement
Find Oracle Jdbc Driver in Maven Repository
Should I Instantiate Instance Variables on Declaration or in the Constructor
"Eee Mmm Dd Hh:Mm:Ss Zzz Yyyy" Date Format to Java.Sql.Date
Android Listview Selected Item Stay Highlighted
Why Does Arrayindexoutofboundsexception Occur and How to Avoid It in Android
Firestore - Merging Two Queries Locally
Clicking the Back Button Twice to Exit an Activity
Command Working in Terminal, But "No Closing Quote" Error When Used Process.Exec
Issues with Corba Communication
No Swt-Mozilla-Gtk-4332 in Java.Library.Path
One to One Mapping of Java Thread to Linux Thread (Lwp)
Swt Expandlistener Executes Before Collapse Occurs on Linux
Is There an Java API Viewer on Command Line Like Man for C and Ri for Ruby