In the following:
scala> (new String(Array[Byte](1, 2, 3, -1, -2, -127))).getBytes
res12: Array[Byte] = Array(1, 2, 3, -1, -2, 63)
why is -127 converted to 63? and how do I get it back as -127
[EDIT:] Java version below (to show that its not just a "Scala problem")
c:mp>type Main.java
public class Main {
public static void main(String [] args) {
byte [] b = {1, 2, 3, -1, -2, -127};
byte [] c = new String(b).getBytes();
for (int i = 0; i < 6; i++){
System.out.println("b:"+b[i]+"; c:"+c[i]);
}
}
}
c:mp>javac Main.java
c:mp>java Main
b:1; c:1
b:2; c:2
b:3; c:3
b:-1; c:-1
b:-2; c:-2
b:-127; c:63
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