Clean a string input for sql injection in Java

import java.io.*;

public class CleanString {
   /**
   * This method cleans a string input for sql injection.
   * @param input String to clean.
   * @return String Obtains the cleaned string.
   */   
   public String cleanString(String input) {
       //Variable to store the cleaned string
       String cleanedString = "";
       //Clean the string
       cleanedString = input.replaceAll("'", "''");
       //Return the cleaned string
       return cleanedString;
   }

   /**
   * One Example
   */
   public static void main(String args[]) throws IOException {

      CleanString  cleanString= new CleanString ();
      //Example
      String input = "This is a 'test'";
      String cleanedString = cleanString.cleanString(input);
      //Output
      System.out.println("Cleaned String is :" + cleanedString); //This is a 'test'
   }
}