If I wanted a single word that meant "conforming to Java language conventions", what would that be? Python has the term "pythonic". Would it be "javaish"?
I'm using a MySQL database and accessing it through Java.
PreparedStatement prep1 = this.connection.prepareStatement("UPDATE user_table
SET Level = 'Super'
WHERE Username = ?");
prep1.setString(1, username);
The update statement above works fine however I'd like to get the number of rows affected with this statement. Is this possible please?
how to do the 3D Animation in java? what are the packages to be needed? i am very newbie about this topic. Sample Code, Tutorials and articles are more thankful. Tell me how i have to start please?
NOTE: its for Mobile Appication.
Hi,
I'm a beginner in java. I want the logic of the small program.
I have two arrays
array = {a1,a2,a3,a4,a5,,,,,,,,,an}
and
array2 = {b1,b2,b3,b4,,,,,,,,,,,bn}
I want string as:
a1b1,a2a3b2b3,a4a5a6b4b5b6,..........an
Please tell me what will be the logic.
Basically I want to be able to encrypt and decrypt with AES 256. What is the industry standard library for encryption in Java? Something that has been around a long time and is tried and true.
I want to make a java application software which give the current status/information of the running computer. So, for this, is there any inbuilt/extrnal library present or not?
Can anyone give a simple code which will just. "What is the current status of laptop battery?" or "Is AC adapter is pluged in or not?"
Please help me.
I have a problem with java instanceof. I have a class called Employee and several others that extend this one, for example - Manager. I also created another class,EmployeeStockPlan, where I wanted to test if instanceof is finding which object I am using. But when I am calling a method from the new class, I have this error: The method grantStock(Manager) is undefined for the type Loader. Sorry, I am somehow new to some thing in java, I hope I am not asking dumb questions.
The Employee class:
package com.example.domain;
public class Employee {
private int empId;
private String name;
private String ssn;
private double salary;
public Employee(int empId, String name, String ssn, double salary) { // constructor
// method;
this.empId = empId;
this.name = name;
this.ssn = ssn;
this.salary = salary;
}
public void setName(String newName) {
if (newName != null) {
this.name = newName;
}
}
public void raiseSalary(double increase) {
this.salary += increase;
}
public String getName() {
return name;
}
public double getSalary() {
return salary;
}
public String getDetails() {
return "Employee id: " + empId + "\n" + "Employee name: " + name;
}
}
The Manager class:
package com.example.domain;
public class Manager extends Employee {
private String deptName;
public Manager(int empId, String name, String ssn, double salary,
String dept) {
super(empId, name, ssn, salary);
this.deptName = dept;
}
public String getDeptName() {
return deptName;
}
public String getDetails() {
return super.getDetails() + "\n" +
"Department: " + deptName;
}
}
The EmployeeStockPlan class:
package com.example.domain;
public class EmployeeStockPlan {
public void grantStock(Employee e) {
// nothing calculated, just simulating;
System.out.println("This is an employee!");
if (e instanceof Manager) {
// process Manager stock grant
System.out.println("This is a manager!");
} else {
// error - instance of Engineer?
System.out.println("Not an engineer!");
}
return;
}
}
The main class:
EmployeeStockPlan esp = new EmployeeStockPlan();
Manager m = new Manager (12421, "Manager1", "111-4254-521", 2430, "Marketing1");
grantStock(m);
What is the best procedure for storing and retrieving, using native Java serialization, generic objects like ArrayList<String>?
Edit: To clarify. When I serialize an object of type ArrayList<String> I'd like to de-serialize to the same type of object. However, I know of no way to cast back to this generic object without causing warnings.
I have a .net application which needs to expose a service consumed by a java client. The service can't be public. There should be some authentication mechanism for the client. What is the best way to do this? I'm new to web services and am confused by all the soap, wsdl etc. and have also heard a lot that it'll be a pain to get the two to communicate. Your thoughts?
Hello,
I am writing a user defined function to DB2 on AS/400 in Java and the strangest thing happen..
I am always getting the same result from the function even when i am changing it, even if i am dropping it and create it again and even when i specify NOT DETERMINISTIC..
Does any one have ever encountered a behavior like that?
Hey guys;
I have a url which leads to in image. How do i grab this image from this url into my servlet? NOTE: the web-app is deployed on google app engine.
java.net.URL myURL = "http://a3.twimg.com/profile_images/150131301/slogo4_normal.jpg";
//code to grab the image
Thank you
I have line in JAVA and in while i get number:
i = gzipinputstream1.read(abyte0, j, 4096);
From while number:
959
1552
1577
1617
1680
when i want use in php:
$i = fread($handle, 959):
while return:
959,
959,
959,
5
How make that in PHP result will be the some. thanks
In my code I am using java.sql.PreparedStatement.
I then execute the setString() method to populate the wildcards of the prepared statement.
Is there a way for me to retrieve (and print out) the final query before the executeQuery() method is called and the query is executed? I Just want this for debugging purposes.
Thanks.
I know in Jython you can do
import java.util.Random as Random
Random().nextInt()
But if I have a class I wrote myself, how can I import it into Jython without putting the class itself in a package? If I have a testclass Test:
public class Test {
public void foo() {
System.out.println("bar");
}
}
that's not inside a package. Can I even import that into jython by using something along the lines offrom Test import Test?
Hi all! I'm making an android program that retrieves content of a webpage using HttpURLConnection. I'm new to both Java and Android.
Problem is: Reader reads whole page source, but in the last while iteration it doesn't append to stringBuffer that last part.
Using debbuger I have determined that, in the last loop iteration, string buff is created, but stringBuffer just doesnt append it.
I need to parse retrieved content. Is there any better way to handle the content for parsing than using strings. I've read on numerous other sites that string size in Java is limited only by available heap size. I've tried with StringBuilder too.
Anyone know what could be the problem. Btw feel free to suggest any improvements to the code.
Thanks!
URL u;
try {
u = new URL("http://feeds.timesonline.co.uk/c/32313/f/440134/index.rss");
HttpURLConnection c = (HttpURLConnection) u.openConnection();
c.setRequestProperty("User-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)");
c.setRequestMethod("GET");
c.setDoOutput(true);
c.setReadTimeout(3000);
c.connect();
StringBuffer stringBuffer = new StringBuffer("");
InputStream in = c.getInputStream();
InputStreamReader inp = new InputStreamReader(in);
BufferedReader reader = new BufferedReader(inp);
char[] buffer = new char[3072];
int len1 = 0;
while ( (len1 = reader.read(buffer)) != -1 )
{
String buff = new String(buffer,0,len1);
stringBuffer.append(buff);
}
String stranica = new String(stringBuffer);
c.disconnect();
reader.close();
inp.close();
in.close();
I've looked around for a good example of this, but I haven't run into one yet. I want to pass a custom string array from java to oracle and back, using the IBATIS framework. Does anyone have a good link to an example? I'm calling stored procs from IBATIS.
Thanks
Hi,
I'm not quite sure what field to use when adding more than 30 days to a Java Calendar object. Is there any difference in between Calendar.DAY_OF_MONTH and Calendar.DAY_OF_YEAR?
Example:
GregorianCalendar d = new GregorianCalendar();
d.add(Calendar.DAY_OF_YEAR, 90);
vs
GregorianCalendar d = new GregorianCalendar();
d.add(Calendar.DAY_OF_MONTH, 90);
Thanks.
Hello.
I develop application with Java.
I need to store some initial configuration data in some kind of file.
I want my app to be able to read this data, but I don't want user to do so.
Example : application loads IP from encrypted file. User sees like "dsda@#21da@" so he won't bother doing anything :)
How should I do such a thing?
Thanx!
This question showed up on my mid-term exams and I've been searching for correct answer for some time. I know that Java interfaces can't be directly instantiated so they don't need constructors and that they can have only public static final attributes so they don't need constructors to set them up but that's not the expected answer.
hi all...
i had created 8 tabs in tabbed panel using java swings. the problem is when i enter data in any tab and click the save button. after clicking it leaves the present tab/panel and going to first tab.
i have to retain on the same tab after clicking the save button..
so please help me on this
Hi,
I have a lot of experience in C and Python, but I'd like to pick up some Java. I was curious if there was a "quick and dirty" guide tailored for people with previous CS background. I'd prefer free online resources but appreciate any suggestion.
Thanks,
Brian
How to/What is a good library, to create a fading indicator message in Java like that of Outlook when you get a message, or Ubuntu/Gnome when you've connected to a network?
I have created a Java Swing application. It works fine.
I have created application file (.app) for that application using jar bundler.
But the main problem is that my application does not open if I click it on the Dock. I am using Mac OS. How I can launch my application by clicking on Dock
Thanks
Sunil Kumar Sahoo