String and StringBuffer

> strings can;t be modified whereas stringbuffer can be.

import java.lang.reflect.*;

public class ImmutableStringDemo {

public static void main(String[] args) throws Exception {

String string = "foo";

System.out.println(string); // foo

new StringChanger().change(string);

System.out.println(string); // bar

}

}

class StringChanger {

public void change(String s) throws IllegalAccessException {

Field[] fields = s.getClass().getDeclaredFields();

for (Field f : fields) {

f.setAccessible(true);

if (f.getType() == char[].class) {

f.set(s, "bar".toCharArray());

}

}

}

}

QED.

~

yawmarka at 2007-7-12 15:42:21 >

> In other news, it has come to light that I can get by

> the Schlage industrial strength deadbolt in your

> front door with an Abrams tank... :)

Indeed. It would be silly of me to say you couldn't break into my house, despite the fact that I had taken reasonable precautions to prevent entry.

You can't turn my house into a fire-breathing pickle. But you can get in the front door if you try hard enough. :o)

~

yawmarka at 2007-7-12 15:42:21 >