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Java String indexOf() method example.
The IndexOf() method of the String class accepts a character as a parameter and it returns the index of the first occurrence of the specified character. In case if the String does not contain the specified character then it returns -1.
Example
import java.io.*; public class Test { public static void main(String args[]) { String Str = new String("Welcome to Tutorialspoint.com"); System.out.print("Found Index :" ); System.out.println(Str.indexOf( 'o' )); } }
Output
Found Index :4
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