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I take null point exception

Gokce Karacayilmaz

Joined: Jun 28, 2012
Posts: 1
I want to use two pstm but I take null pointer exception. Please help me thank you.

Java code is :

private void sorgula (String bul){
ResultSet rs = null;
ResultSet rs1 = null;
PreparedStatement stm =null;

try {
String str = bul;
String[] str_array1 ;
String[] str_array2 = null;
String[] harf_array = null;
str_array1 = str.split(";");

String sql = "SELECT kelimeler from sozlukler";
stm = sifrecoz.conn.prepareStatement(sql);

for(int i =0; i < str_array1.length ; i++) {
str_array2 = str_array1 [i].split(",");}
rs = stm.executeQuery(sql);

while (rs.next()) {
String yeni_kelime = rs.getString(1).trim();
for(int j =0; j < str_array2.length ; j++){
String harf_bul = "select SUBSTRING(\'"+ yeni_kelime +"\',"+str_array2 [j]+",1)";
stm = sifrecoz.conn.prepareStatement(harf_bul);

for(int k =0; k < harf_array.length ; k++) {
rs1 = stm.executeQuery(harf_bul);
harf_array [k] = harf_bul;


} catch (Exception e) {
try {
if (rs != null || rs1 != null) {
} catch (SQLException ex) { Logger.getLogger(sorgu.class.getName()).log(Level.SEVERE, null, ex); }
William P O'Sullivan
Ranch Hand

Joined: Mar 28, 2012
Posts: 860


You will get better help if you format your code using the "Code" tag (Click on the link)
Give us the line number in your code where the NPE occurs.

I do not have time to wade through your code.

Help us to help you.

It is sorta covered in the JavaRanch Style Guide.
subject: I take null point exception
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