Is string primitive data type?

Question

- Is String a primitive date type? Elaborate please.
- How is String object is mutable?

Answer 1

> It is completely immutable. Once created it cannot be changed.
import java.lang.reflect.*;
public class ImmutableStringDemo {
    public static void main(String[] args) throws Exception {
        String string = "foo";
        System.out.println(string);
        new StringChanger().change(string);
        System.out.println(string);
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. ;o)
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