What is the index Of a char inside a string - Java java.lang

Java examples for java.lang:String Index

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Description

What is the index Of a char inside a string

Demo Code

public class Main {

  public static void main(String[] argv) {
    String str = "java2s.com";
    char searchChar = 'a';
    System.out.println(indexOf(str, searchChar));
  }//  ww  w . j  a v  a2  s.  c  om

  public static int indexOf(String str, char searchChar) {
    if (isEmpty(str)) {
      return -1;
    }
    return str.indexOf(searchChar);
  }

  public static boolean isEmpty(String str) {
    return str == null || str.length() == 0;
  }


}

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