Use String.indexOf to locate a character in a string : String Find Search « Data Type « Java Tutorial

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Java Tutorial » Data Type » String Find Search 
2. 29. 6. Use String.indexOf to locate a character in a string
public class MainClass
{
   public static void mainString args[] )
   {
      String letters = "abcdefghijklmabcdefghijklm";

      
      System.out.printf
         "'c' is located at index %d\n", letters.indexOf'c' ) );
      System.out.printf(
         "'a' is located at index %d\n", letters.indexOf'a') );
      System.out.printf(
         "'$' is located at index %d\n\n", letters.indexOf'$' ) );

   }
}
'c' is located at index 2
'a' is located at index 13
'$' is located at index -1
2. 29. String Find Search
2. 29. 1. Find the latest index of any of a set of potential substrings.
2. 29. 2. Find the first index of any of a set of potential substrings.
2. 29. 3. Finds the first index within a String, handling null.
2. 29. 4. Finds the last index within a String from a start position, handling null.
2. 29. 5. Finds the n-th index within a String, handling null.
2. 29. 6. Use String.indexOf to locate a character in a string
2. 29. 7. Use String.lastIndexOf to find a character in a string
2. 29. 8. Use String.indexOf to locate a substring in a string
2. 29. 9. Use lastIndexOf to find a substring in a string
2. 29. 10. Demonstrate indexOf() and lastIndexOf().
2. 29. 11. Extract Substring with indexOf
2. 29. 12. Java String endsWith
2. 29. 13. Java String startsWith
2. 29. 14. Starts with, ignore case( regular expressions )
2. 29. 15. Ends with, ignore case( regular expressions )
2. 29. 16. Anywhere, ignore case( regular expressions )
2. 29. 17. Last occurrence of a character
2. 29. 18. Not found returns -1
2. 29. 19. A bubble sort for Strings.
2. 29. 20. Search a String to find the first index of any character in the given set of characters.
2. 29. 21. Search a String to find the first index of any character not in the given set of characters.
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