Java negative int to hex and back fails

Question

public class Main3 {
    public static void main(String[] args) {
        Integer min = Integer.MIN_VALUE;
        String minHex = Integer.toHexString(Integer.MIN_VA         


        

Answer 1

This seem to work for me :

public class Main3 {
public static void main(String[] args) {
    Integer min = Integer.MIN_VALUE;
    String minHex = Integer.toHexString(Integer.MIN_VALUE);

    System.out.println(min + " " + minHex);
    System.out.println((int)Long.parseLong(minHex, 16));
}
}

The integer is parsed as a "signed long" that handle such big positive number and then the sign is found back by casting it to "int".