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String URL="localhost:3306"; String USERNAME="root"; String PASSWORD="root"; String DATABASE="demo"; int id=0; try {String driverName = "com.mysql.jdbc.Driver"; Class.forName(driverName); String url ="jdbc:mysql://127.0.0.1:3306/studentsrno"; Connection con =DriverManager.getConnection(url,"root", ""); PreparedStatement ps=con.prepareStatement("insert into students(name,marks) values(?,?)",Statement.RETURN_GENERATED_KEYS); ps.setString(1,"Neeraj"); ps.setInt(2, 90); ps.executeUpdate(); ResultSet rs=ps.getGeneratedKeys(); if(rs.next()){ id=rs.getInt(1); } System.out.println(id); } catch (Exception e) { e.printStackTrace(); }