如何在Kotlin中制作Null角色

Question

In Java, one can use the escape sequence \\0 to represent the Null character

\\0 and \\0000 are not valid escape sequences in Kotlin, so I've been using a static java char and accessing that from Kotlin.

public class StringUtils{
  public static char escapeChar = '\0';
}

Is there a Null character literal, or a better way of doing this in Kotlin?

Answer 1

These options will work:

• '\' (Unicode escape syntax, as described in the docs )
• 0.toChar() ( conversions are optimized and have no function call overhead)
• import java.lang.Character.MIN_VALUE as nullChar , then use nullChar ( renaming import )

Answer 2

I believe it must be '\' . Please visit this page for more information.