Trending questions in Java

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I'm getting following error, while i'm running code in windows xp service pack 3 with JDK 6 version.

Till you send the code, I would ...READ MORE

May 16, 2018 in Java by Meci Matt
 • 9,460 points • 3,331 views
0 votes
1 answer

How to pad an integer with zeros on the left in Java?

Use java.lang.String.format() method. String.format("%05d", number ...READ MORE

May 31, 2018 in Java by Daisy
 • 8,140 points • 2,731 views
0 votes
2 answers

How may I programmatically determine operating system in Java?

Use the following program public class Osname {        public ...READ MORE

Jul 6, 2018 in Java by Priyaj
 • 58,020 points • 1,128 views
0 votes
1 answer

How does omitting curly braces in Java program, effect the code ?

Using braces makes the code more maintainable ...READ MORE

May 14, 2018 in Java by Rishabh
 • 3,620 points • 3,449 views
0 votes
2 answers

How to get input from user using System.console()?

Scanner in = new Scanner(System.in); int i = ...READ MORE

Aug 2, 2018 in Java by Sushmita
 • 6,920 points • 1,478 views
0 votes
1 answer

How to get the name of the currently executing method?

Thread.currentThread().getStackTrace() will usually contain the method you’re ...READ MORE

Jul 5, 2018 in Java by Daisy
 • 8,140 points • 1,174 views
0 votes
3 answers

How to sort an array in java?

import java.util.Arrays; public class Sort { ...READ MORE

Aug 24, 2018 in Java by Parth
 • 4,640 points • 1,712 views
0 votes
1 answer

how to play sound in java?

 The following code will work fine. But I ...READ MORE

Jun 20, 2018 in Java by scarlett
 • 1,290 points • 1,813 views
0 votes
1 answer

How to get a platform-dependent new line character in Java?

If you are using Java 1.5 or ...READ MORE

Jul 3, 2018 in Java by Akrati
 • 3,190 points • 1,225 views
0 votes
1 answer

Measure time elapsed in Java?

This is also a way to work ...READ MORE

Jul 4, 2018 in Java by scarlett
 • 1,290 points • 1,200 views
0 votes
3 answers

Convert date object to a String

We parse the full date to time ...READ MORE

Jul 31, 2018 in Java by samarth295
 • 2,220 points • 2,147 views
0 votes
1 answer

Is it possible to create a memory leak with Java

Here's a good way to create a memory ...READ MORE

May 31, 2018 in Java by Parth
 • 4,640 points • 2,638 views
0 votes
0 answers

How to populate a ListView using an ArrayList?

I want to populate the data coming ...READ MORE

Jun 30, 2018 in Java by misc.edu04
 • 1,450 points • 1,350 views
0 votes
1 answer

NoClassDefFoundError in Java

Can’t tell you the exact reason as ...READ MORE

May 25, 2018 in Java by v.liyyah
 • 1,300 points • 2,825 views
0 votes
2 answers

How to read a text file in Java?

You can use Scanner class to read ...READ MORE

Aug 9, 2018 in Java by Parth
 • 4,640 points • 1,590 views
0 votes
1 answer

In Java, how to find out the min/max values from array of primitive data types?

import java.util.Arrays; import java.util.Collections; import org.apache.commons.lang.ArrayUtils; public class MinMaxValue { ...READ MORE

Jun 12, 2018 in Java by Daisy
 • 8,140 points • 2,013 views
0 votes
1 answer

How to get the Generic type of class at run time?

public class GenericClass<T> { ...READ MORE

Jul 2, 2018 in Java by Akrati
 • 3,190 points • 1,133 views
0 votes
1 answer

How to convert s Stack trace to a String?

One can use the given method to ...READ MORE

Jun 25, 2018 in Java by sharth
 • 3,370 points • 1,467 views
0 votes
1 answer

What is the use of assert keyword in java?

Java assertion feature allows the developer to ...READ MORE

Jun 28, 2018 in Java by scarlett
 • 1,290 points • 1,258 views
0 votes
2 answers

Date format conversion in Java

Calendar cal = Calendar.getInstance(); cal.add(Calendar.DATE, 1); Date date = ...READ MORE

Aug 13, 2018 in Java by Sushmita
 • 6,920 points • 1,485 views
0 votes
1 answer

Can a static reference be made to a non-static method

setLoanItem() isn't a static method, it's an instance ...READ MORE

Jun 26, 2018 in Java by samarth295
 • 2,220 points • 1,333 views
0 votes
2 answers

Store String inside a File using Java

We can use Apache Commons IO. It ...READ MORE

Jul 20, 2018 in Java by Sushmita
 • 6,920 points • 1,921 views
+1 vote
1 answer

What is the difference between JavaScript and Java

This quote rightly explains that 2 totally ...READ MORE

Jun 29, 2018 in Java by Daisy
 • 8,140 points • 1,136 views
0 votes
1 answer

How to configure Android SDK for finding JDK

Actual SETUP: OS: Windows 8.1 JDK file: jdk-8u11-windows-x64.exe ADT file: ...READ MORE

Jun 29, 2018 in Java by Rishabh
 • 3,620 points • 1,155 views
0 votes
1 answer

How to get the IP address of the machine using Java?

One approach is to use NetworkInterface.getNetworkInterfaces() to get all ...READ MORE

Jun 25, 2018 in Java by sharth
 • 3,370 points • 1,304 views
0 votes
1 answer

How to stop the Thread in Java?

Use a flag, which will indicate the ...READ MORE

Jun 11, 2018 in Java by Parth
 • 4,640 points • 1,891 views
0 votes
1 answer

Which Java GUI framework we should refer?

If you are working on Desktop Application, ...READ MORE

Jun 19, 2018 in Java by Parth
 • 4,640 points • 1,537 views
0 votes
1 answer

Number of lines in a file in Java

I found this an efficient way in counting ...READ MORE

Jul 4, 2018 in Java by scarlett
 • 1,290 points • 904 views
0 votes
1 answer

Default Constructor in Java

Well, none of these is the default ...READ MORE

Jun 19, 2018 in Java by geek.erkami
 • 2,680 points • 1,498 views
0 votes
1 answer

Remotely debugging JVM using Java command line

In order to use JAVA_OPT you need ...READ MORE

Jun 19, 2018 in Java by 93.lynn
 • 1,600 points • 1,477 views
0 votes
1 answer

ThreadLocal variables usage in Java

public class Test { // ...READ MORE

Jun 30, 2018 in Java by code.reaper12
 • 3,500 points • 995 views
0 votes
1 answer

Generating an MD5 hash?

The MessageDigest class can provide you with an instance ...READ MORE

Jun 13, 2018 in Java by Rishabh
 • 3,620 points • 1,693 views
0 votes
1 answer

What are Daemon threads in Java?

A daemon thread is a thread that is doing ...READ MORE

Jun 29, 2018 in Java by Daisy
 • 8,140 points • 1,003 views
0 votes
1 answer

How to read text files from the Classpath in Java?

InputStream in = this.getClass().getClassLoader().getResourceAsStream("TextFile.txt"); InputStream in = this.getClass().getResourceAsStream("/TextFile.txt"); package ...READ MORE

May 8, 2018 in Java by Akrati
 • 3,190 points • 3,209 views
0 votes
1 answer

Access restriction on class error

My guess is that you are trying ...READ MORE

Jun 21, 2018 in Java by Rishabh
 • 3,620 points • 1,279 views
0 votes
1 answer

Continue Keyword in Java

continue is kind of like goto. Are you familiar ...READ MORE

Jul 3, 2018 in Java by Rishabh
 • 3,620 points • 745 views
0 votes
1 answer

Formatting Double Value in Java

An alternative is to use String.format: double[] arr = ...READ MORE

May 15, 2018 in Java by Rishabh
 • 3,620 points • 2,862 views
0 votes
2 answers

How to create a 2-D array in java?

int[][] multi = new int[5][]; multi[0] = new ...READ MORE

Jul 16, 2018 in Java by Daisy
 • 8,140 points • 2,169 views
0 votes
1 answer

How can we use java property files?

You can refer the below code: Properties properties ...READ MORE

Jun 28, 2018 in Java by Akrati
 • 960 points • 962 views
0 votes
1 answer

How to getters and setters work in java

In Java, getter and setter are two ...READ MORE

Jun 1, 2018 in Java by Daisy
 • 8,140 points • 2,091 views
0 votes
1 answer

How to fire and handle HTTP requests

There are 2 options you can go ...READ MORE

Jun 13, 2018 in Java by Rishabh
 • 3,620 points • 1,528 views
0 votes
1 answer

what do you mean by static block in java?

Static block is used for initializing the ...READ MORE

Jun 18, 2018 in Java by scarlett
 • 1,290 points • 1,313 views
0 votes
1 answer

To use JavaMail API for sending mails in Android without using the default/built-in App

ADD 3 jars found in the following ...READ MORE

Jun 6, 2018 in Java by sridhar
 • 160 points • 1,817 views
0 votes
2 answers

How to convert array into list in Java?

Another workaround if you use apache commons-lang: int[] ...READ MORE

Aug 10, 2018 in Java by samarth295
 • 2,220 points • 1,300 views
0 votes
1 answer

Exception coming "android.os.NetworkOnMainThreadException"

This exception is thrown when an application ...READ MORE

Jun 6, 2018 in Java by poorvi
 • 160 points • 1,794 views
0 votes
1 answer

Is Java “pass-by-reference” or “pass-by-value”?

Think of reference parameters as being aliases ...READ MORE

Jun 8, 2018 in Java by Rishabh
 • 3,620 points • 1,690 views
+1 vote
2 answers

How to generate random integers within specific range in Java?

You can achieve that concisely in Java: Random ...READ MORE

Jul 25, 2018 in Java by samarth295
 • 2,220 points • 1,783 views
0 votes
2 answers

How to find out current working directory in Java?

You can also use java.nio.file.Path and java.nio.file.Paths. Path ...READ MORE

Jul 31, 2018 in Java by Sushmita
 • 6,920 points • 1,445 views
0 votes
2 answers

Copying Objects in Java

class DummyBean { private String dummy; ...READ MORE

Aug 6, 2018 in Java by Sushmita
 • 6,920 points • 1,309 views
0 votes
1 answer

using comparator for sorting in java

You've got two problems: 1) You're using Collections.sort (which takes ...READ MORE

Jul 6, 2018 in Java by samarth295
 • 2,220 points • 1,109 views
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