java - how to insert variable into a table in MySQL -


i know how add data table. like

string insertquery = "insert tablename (x_coord, y_coord)"                             +"values"                             +"(11.1,12.1)"; s.execute(insertquery);

11.1 , 12.1 can inserted table. given float variable

float fv = 11.1;

how insert fv table?

in java, can use prepared statements this:

connection conn = null; preparedstatement pstmt = null;  float floatvalue1 = 11.1; float floatvalue2 = 12.1;  try {     conn = getconnection();     string insertquery = "insert tablename (x_coord, y_coord)"                         +"values"                         +"(?, ?)";     pstmt = conn.preparestatement(insertquery);     pstmt.setfloat(1, floatvalue1);     pstmt.setfloat(2, floatvalue2);     int rowcount = pstmt.executeupdate();     system.out.println("rowcount=" + rowcount); } {     pstmt.close();     conn.close(); }

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