Parameter index out of range(1> number of parameters, which is 0)

java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0). 

String DRIVER = "com.mysql.jdbc.Driver"; 
Class.forName(DRIVER).newInstance(); 
String url="jdbc:mysql://localhost:3306/regis?user=root&password=fraze"; 
Connection Conn = DriverManager.getConnection(url); 


String strSQL = "select username,password from users where username like '%s'; 

PreparedStatement statement = Conn.prepareStatement(strSQL); 
statement.setString(1, user); 
statement.setString(2, pass); 
ResultSet Rs= statement.executeQuery(strSQL); 

if(myRs.next()){ 
out.println("Login Succesful! A record with the given user name and password exists"); 
} else { 
out.println("Login Failed. No records exists with the given user name and password"); 
} 
statement.close();