Java Data Type Tutorial - Java StringBuilder.indexOf(String str)

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Syntax

StringBuilder.indexOf(String str) has the following syntax.

public int indexOf(String str)

Example

In the following code shows how to use StringBuilder.indexOf(String str) method.

// w w  w.  j av  a  2 s.  c om
public class Main{
  public static void main(String args[]) {
    StringBuilder sb = new StringBuilder();
    sb.append("java2s.com");
    int index = sb.indexOf("a");
    System.out.println(index);
    
  }
}

The code above generates the following result.

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