indexOf (int ch)

public int indexOf(int ch)

Returns the index within this string of the first occurrence of the specified character or -1 if the character does not occur.

class StringIndexOf{
 public static void main(String args[]){
  String s1 = new String("wxyzbab");
  System.out.println("s1 = " + s1);
  
  System.out.print("Character b at index ");
  System.out.println(s1.indexOf('b'));
  
  System.out.print("Character h at index ");
  System.out.println(s1.indexOf('h'));
 }
}

Output

s1 = wxyzbab
Character b at index 4
Character h at index -1

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