Recent questions tagged java

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java - assertEquals(obj,obj) returns a failed test

Hmm, I have a money object that allows me to add other money objects into it. I tried assertEquals() in java for ... ))? true : false; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to parse Sub JSONArray and display image?

I am a php programmer and I am trying to learn JAVA. I have problem trying to parse a json file. It's been for 3 ... ).show(); } }); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What does InputMismatchException Mean?

Exception in thread "main" java.util.InputMismatchException What it indicates for me while I'm using it with ... .main(ParseString.java:9) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to use Specification in JPA

I am implementing search functionality in my application. I am using Specification in findAll() and it is ... other than findAll method. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - how i highlighted item in first launch of app in recycle

I have integrated item is highlighted in the first launch of the app in my project. I'll use to save the ... position) { return position; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to draw multiple shapes on JComponent or Jpanel?

I'm trying to build Paint app and I doing something wrong in DrawingArea class. The problem is when I try to draw second ... = 0; return; } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Trying to move JLabels on a JPanel with GridLayout

I am trying to make some JLabels switch places with eachother on a JPanel with GridLayout on key pressed. So far: 1. I ... (dir == 2) doesn't?! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Getting the lowest and highest value from integers without using arrays?

I'm trying to write a class which reads 5 integers from the user and returns the highest and lowest value back. This ... value: " + max); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Check if ArrayList<String> contains part of a string

Say I have an ArrayList: <string1.4> <string2.4> <string3.4> and I wish to return the the first element ... a substring of that element string? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Could you technically call the string[] anything in the main method?

The header for the main method is public static void main (String[] args) Could you technically replace "args" ... is the parameter an array? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - how to read all value from room data base and show into recyclerview?

I am using room database for storing json data from URL its working fine but while accessing data from data base ... (itemAndPeople); } }); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - how to parse OffsetTime for format HHmmssZ

I am trying to parse date string with format "HHmmssZ", OffsetTime.parse("115601Z", DateTimeFormatter.ofPattern(" ... parse(OffsetTime.java:327) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - MySQL Result Set - No value specified for parameter 1

I can't figure out what this error means or how to fix it. I'm trying to retrieve some data from one of my ... :132) at Main.main(Main.java:21) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Change SeekBar progress based on EditText value

I am trying to change the progress of a SeekBar based on the number entered in an EditText but for some reason ... is at the maximum as well. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JavaFX format double in TableColumn

TableColumn<Product, Double> priceCol = new TableColumn<Product,Double>("Price"); priceCol.setCellValueFactory(new ... 1 decimal place. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JFrame with Background Image and a JPanel

I have the following: public class Frame { public static void main(String[] args) { JFrame frame = new JFrame(" ... code. Thanks in advance... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Moving my db to sd card not working

I'm using the code below to try and move my database file to my sdcard. I have no problems except that I get ... e) { e.printStackTrace(); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - junit test class for the following code

How to mock the object for the Phone object. code bellow, public class Fortest { UserDao userdao = new UserDao(); ... name.getA()); } } Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Inserting an image under a JTextArea

so I'm trying to insert an image underneath a JTextArea, but I havent had much luck, could anyone please help? ... ); gui.launchFrame(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java list returning last element only

I have a pojo where I am trying to read data from a csv file into a list and then print it back out. ... the first 3 elements getting lost..? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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281 views

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java - Missing plugins found while loading a transformation on Kettle

I receive this error whenever I run my extraction from the command line, not in the Spoon UI. Missing plugins ... > Am I missing anything? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Images Won't Appear In A Jar

So I am making a basic text adventure game using Java, and I have decided to include images. The code I ... would greatly appreciate it. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Conversion of Date

I am getting date in two different formats. 1) 2012-01-05 2) 05/01/2012 But I want this to be in the below ... 05" and String d2="2012-01-05". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Swing: catching exceptions from TableModel

I have a TableModel that may throw an exception on its setValueAt method if user enters an invalid value: ... TableModel should be doing that. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Opening a new JFrame from a Button

I want to open a new JFrame by clicking a button (btnAdd); I have tried to create an actionlistener but I am ... frame.setVisible( true ); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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125 views

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java - How to locate and type something in the textbox

public class testFluent { WebDriver driver; @Before public void setUp(){ driver = new FirefoxDriver(); ... myDynamicElement(testFluent.java:49) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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218 views

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java - Clip not playing any sound

Well, the title says all, I tried playing a wav file using javax.sound and nothing is happening. I have tried ... 10 decibels. play.start(); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - how to pass a variable from one JFrame to another

I have two JFrames newAccessLevels.java, which has two buttons "Level 1" "Level 2" and newAccessPanel.java I ... (Color.BLACK); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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