java - I can't insert into MsAccess database -

-

i have following ui enter image description here

but then, can't insert data ms access database. first row generated manually through ms access database

i don't know what's matter code, seems they're doing fine

private void dosimpan(string idnya, string namanya,string alamatnya,string teleponnya,string emailnya,string passwordnya,string rolesnya)    {        try {         string query = "insert msemployee (employeeid, employeename, employeeaddress, employeephone, employeeemail, employeepassword, employeerole)values ('"+idnya+"','"+namanya+"','"+alamatnya+"','"+teleponnya+"','"+emailnya+"','"+passwordnya+"','"+rolesnya+"')";         connect.executequery(query);         filltable();         cmd.printsuccess("master employee", namanya+" saved successfully");     } catch (exception e) {     } }

here execquery method

    private statement st; public void executequery(string query)     {         try {             st.executeupdate(query);         } catch (sqlexception ex) {             system.out.println("error: " +ex);         }     }

here printask() method

public boolean printask(string title, string text) {     if(joptionpane.showconfirmdialog(null, text, title, joptionpane.yes_no_option) == joptionpane.yes_option)     {         return true;     }     else     {         return false;     } }

here isvalid() method

private boolean isvalid(string name,string address,string phone,string email,string password)    {     if(name.equals("") || address.equals("") || phone.equals("") || email.equals("") || password.equals(""))     {         return false;     }     else if(val.isnumeric(phone) || !email.contains("@") && !email.endswith(".com"))     {         return false;     }     else     {         return true;     } }

and here code on save button

   //save private void jbutton4actionperformed(java.awt.event.actionevent evt) {                                              string idnya = jtextfield1.gettext();     string namanya = jtextfield2.gettext();     string alamatnya = jtextarea1.gettext();     string teleponnya = jtextfield3.gettext();     string emailnya  = jtextfield4.gettext();     string passwordnya = new string(jpasswordfield1.getpassword());     string rolesnya = jcombobox2.getselecteditem().tostring();      if(status==1) //to insert     {          if(isvalid(namanya, idnya, teleponnya, emailnya, passwordnya))         {             if(cmd.printask("master employee", namanya+" entered, continue ?"))             {                 dosimpan(idnya, namanya, alamatnya, teleponnya, emailnya, passwordnya, rolesnya);                 filltable();                 defaultcontrol(false,false);                 crudbutton(true);             }         }         else         {             cmd.printfail("master employee", "all field must filled");         }     }     else if (status==2)//to update     {                  }  }

where go wrong ? got "nencor saved successfully" then, can't find employee named nencor on ms access database

my connect constructor

 public connect() {     try {         class.forname("sun.jdbc.odbc.jdbcodbcdriver");         con = drivermanager.getconnection("jdbc:odbc:driver={microsoft access driver (*.mdb)};dbq=tifproject.mdb");         st = con.createstatement(1004, 1008);     } catch (exception ex) {         system.out.println("database error" + ex);     }  }

you have add in program. 

class.forname("sun.jdbc.odbc.jdbcodbcdriver").newinstance(); connection = drivermanager.getconnection(databaseurl ,"",""); //databaseurl url db st=connection.createstatement();

error occurred because didn't mention , initialize variables needed database interaction.write above 3 lines in execquerymethod , done.


Comments

Post a Comment

Popular posts from this blog

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

python - TypeError: can only concatenate tuple (not "float") to tuple -

-
i'm new python, question might easy, anyway, patience: as trying call newton-raphson method calculate implied volatility in black-scholes formula call/put option pricing, first thing is, newton method in scipy.optimize seems calculate function's zeros, in black-scholes formula, want function's value option price, not zero. (i'm new here programming, i'm not sure techniques.) should write function things like: def f(sigma, price): return bsformula(s0,k,r,t,q,sigma) - price then, while calling newton method, takes args=() 1 parameter in function, write this: value = newton(bsprice2, 0.5, args=price) but error message: file "bs.py", line 36, in bsimpvol value = newton(bsprice2, 0.5, args=float(price)) file "/usr/lib/python2.7/dist-packages/scipy/optimize/zeros.py", line 143, in newton q0 = func(*((p0,) + args)) typeerror: can concatenate tuple (not "float") tuple could tell me why that? how fix it? apprecia...
Read more

java - What is the difference between String. and String.this. ? -

-
this question has answer here: meaning of .this , .class in java 2 answers i'll straight point. im still learning bit of syntax , want know difference between code is code a: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.valueof(i))); } } please ignore fact i undeclared, not lost. code b: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.this.charat(i))); } } what don't yet understand difference in typing string.this , string. i under assumption when use dot operator on class accessing it's static methods(and/or variables if they're not hidden). i have studied little bit , have concluded when using string. accessing string static methods.. when using string.this. i'm accessing methods class buttonz extendi...
Read more