Jun 26, 2012 · In Java 6, there is a method doing exactly what you want: private static final byte[] CDRIVES = javax.xml.bind.DatatypeConverter.parseHexBinary ...

in java all the variables like byte short int long float double are written as signed . so is very simple the head bit always specifies what is( negative or positive), but because the numbers are dividable by 2 half is shifted as negative , 0 is positive by default . so it looks like this :

Mar 4, 2011 · You can use a byte literal in Java... sort of. byte f = 0; f = 0xa; 0xa (int literal) gets automatically cast to byte.

A Java byte is a primitive with a minimum value of -128 and a maximum value of 127 (inclusive). 87 is within the allowed range. The byte data type can be useful for saving memory in large arrays, where the memory savings actually matters. A byte[] is an Object which stores a number of these primitives.

I read this line in the Java tutorial: byte: The byte data type is an 8-bit signed two's complement integer. It has a minimum value of -128 and a maximum value of 127 (inclusive). The byte data type can be useful for saving memory in large arrays, where the memory savings actually matters.

Apr 29, 2014 · A documentação do Java diz o seguinte sobre byte: The byte data type is an 8-bit signed two's complement integer. It has a minimum value of -128 and a maximum value of 127 (inclusive). The byte data type can be useful for saving memory in large arrays, where the memory savings actually matters.

Dec 28, 2011 · Because gustafc's answer has a very important point: String(byte[]) constructor uses the System default encoding to convert the byte array into String characters. One should not assume that a 0x63 byte value is mapped to the letter 'c'. For example, in UTF-16 the letter 'c' is represented by 2 encoding bytes, not one.

Oct 17, 2012 · Step back. Look at the bigger picture. You're stuck converting byte[] to Byte[] or vice versa because of Java's strict type casing with something like this. List< Byte> or List<Byte[]> Now you have byte[] and Byte[] and have to convert. This will help. Keep all your byte[]s in a list like this: List<byte[]> instead of List< Byte> or List<Byte[]>.

Apr 10, 2015 · Let's suppose I have just used a BufferedInputStream to read the bytes of a UTF-8 encoded text file into a byte array. I know that I can use the following routine to convert the bytes to a string, ...

Jan 28, 2014 · Convert without creating String object:. import java.nio.CharBuffer; import java.nio.ByteBuffer; import java.util.Arrays; byte[] toBytes(char[] chars) { CharBuffer ...