indexOf

int indexOf(int ch)
Returns the index within this string of the first occurrence of the specified character.
int indexOf(int ch, int fromIndex)
Returns the index within this string of the first occurrence of the specified character, starting the search at the specified index.
int indexOf(String str)
Returns the index within this string of the first occurrence of the specified substring.
int indexOf(String str, int fromIndex)
Returns the index within this string of the first occurrence of the specified substring, starting at the specified index.

public class Main {
  public static void main(String[] argv) {
    String str = "Java2s.com";
    String str2 = ".com";
    System.out.println(str.indexOf(str2));

  }
}

The output:


6
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String:
  1. String type and Literals
  2. String Concatenation
  3. String.CASE_INSENSITIVE_ORDER
  4. String Constructor
  5. charAt(int index):Get a single char by index
  6. String: compareTo(String stringValue)
  7. concat(String str)
  8. equals():Compare two string value for equality
  9. equals( ) vs ==
  10. contains(CharSequence s)
  11. copyValueOf(char[] data)
  12. endsWith(String suffix)
  13. format():Format a string
  14. getBytes():Get byte array from string
  15. getChars()
  16. indexOf
  17. intern a string
  18. isEmpty:if string is empty
  19. lastIndexOf()
  20. length() Returns the length of this string
  21. startsWith( )
  22. toLowerCase() and toUpperCase(): convert string case with locale
  23. substring:Get sub string from a string
  24. toCharArray():Get char array from string
  25. toString( )
  26. trim()
  27. valueOf():Convert boolean, char, double, float,int,long,object to String