In a Java interview, write a function to intercept a string!!!!

function | String programming: Write a function that intercepts the string, input as a string and byte number, and output as a byte-truncated string. But to ensure that the Chinese character is not truncated half, such as "I abc" 4, should be truncated to "I ab", input "my ABC-def", 6, should be exported as "my ABC" instead of "I abc+ Han half."




Package string;
Class Splitstring
{
Private String str;
private int bytenum;

Public splitstring () {}

Public splitstring (String str,int bytenum)
{
THIS.STR=STR;
This.bytenum=bytenum;

}

public void Splitit ()
{

byte bt[]=str.getbytes ();
System.out.println ("Length of this String ===>" +bt.length);
if (bytenum>1)
{
if (bt[bytenum]<0)
{
String Substrx=new string (bt,0,--bytenum);
System.out.println (SUBSTRX);
}else
{
String Substrex=new string (bt,0,bytenum);
System.out.println (Substrex);
}

}else
{
if (bytenum==1)
{
if (bt[bytenum]<0)
{
String Substr1=new string (bt,0,++bytenum);
System.out.println (SUBSTR1);
}else
{
String Substr2=new string (bt,0,bytenum);
System.out.println (SUBSTR2);
}
}else
{
SYSTEM.OUT.PRINTLN ("Input error!!! Please enter an integer greater than 0: ");
}
}
}
}

public class Testsplitstring
{
public static void Main (String args[])
{
String str= "I ABC-han def";
int num=6;
splitstring sptstr = new splitstring (str,num);
Sptstr.splitit ();
}
}