First string is a substring of the second one

Question

I need to write a User Defined Method which
Checks if the first string is a substring of the second one.
- Returns 0 if it is not a substring / 1 if it is / -1 if it is a “circular substring”
this is an example of what it should do
-     abcde is a substring of blkjabcdelkjsd  return 1
-     abcde is not a substring of slfkjsdlskggfhjkh  return 0
-     abcde is a “circular substring” of delkjlkjabc  return -1
Can Anyone help?

Answer 1

I need to write a User Defined Method which
Checks if the first string is a substring of the second one.
- Returns 0 if it is not a substring / 1 if it is / -1 if it is a “circular substring”
this is an example of what it should do
- abcde is a substring of blkjabcdelkjsd  return 1
- abcde is not a substring of slfkjsdlskggfhjkh  return 0
- abcde is a “circular substring” of delkjlkjabc  return -1
Can Anyone help?
This is the code that i have so far but not sure if it is correct with the return values
public static int substring(String Str1, String Str2)
int return = 0
for(int i = 0; i < Str2.length(); i++)
   if (Str2.charAt(i) == Str1.charAt(0))
           for(int j =0; j < Str2.length(); j++)
           if (Str2.charAt(i) == Str1.charAt(j))
             return = 1;
           else
             return = 0;
for(int i = 0; i < Str2.length(); i++)
   if (i = Str2.length())
       i = 0
     for (int j = 0; j < Str2.length(); j++)
     return -1;
}