Recent questions tagged java

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java - Creating a custom TableModel with multiple column headers and row headers

I'm attempting to create a JTable that looks like the mockup below: The green corner is basically buffer- ... what methods I should override. 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 - NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()

I'm trying to deploy my application on OpenShift (JBoss Enterprise Application Platform 6) and I get the ... </profile> </profiles> 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 - Spring Boot CORS with HTTPS failing

I am using Spring Boot to serve a simple REST controller with an Angular app. I configured a global CORS ... CORS request did not succeed). 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 - .forEach and .sort don't work and cannot set breakpoints in blocks

I am using Java 8 (build 1.8.0_25), Netbeans 8.0.2 and am incorporating some of the Java 8 features ... attention than 1 uptick besides mine. 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 - Is there a better way to implement those nested loops?

Suppose having three arrays: char [] one = {'a','b','c'}; char [] two = {'1','2','3'}; char [] ... a thing, It's just the mater of thinking. 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 - codingBat plusOut using regex

This is similar to my previous efforts (wordEnds and repeatEnd): as a mental exercise, I want to solve ... community comes up with. 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 - Fragment null must be a public static class to be properly recreated from instance state

I am not able to figure out why my app crashes when getSupportFragmentManager() is called.I have used ... (),"addIncome"); 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 do inclusive range queries when only half-open range is supported (ala SortedMap.subMap)

On SortedMap.subMap This is the API for SortedMap<K,V>.subMap: SortedMap<K,V> subMap(K fromKey, K ... is the only available functionality? 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 - drawing on Jframe

I cannot get this oval to draw on the JFrame. static JFrame frame = new JFrame("New Frame"); public static void ... What am I doing wrong here? 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 issue with static keyword; with Minimal, Complete, and Verifiable example

Good day, When I run this Code: import javafx.application.Application; import javafx.scene.Group; import javafx.scene. ... an object of a class. 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 - Set the delay time for each <test> in TestNG

First as info: I put each @Test in a different class (so of course each class only has 1 @Test annotation). ... to reduce the delay time above? 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 - JSpinner Date Editor in Buddhist Calendar

Is there a way to use JSpinner.DateEditor with a Buddhist Calendar? When I change my locale to "th", "TH" ... ().setLocale(locale); Any ideas? 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 make a collection of images with in a view in android studio using staggered layout (Or any other suggestion)

I need to show the collection of image in a collection view of images in android. https://i.stack.imgur.com/mdZzI. ... for me in 3 and 5 images. See Question&Answers more detail:os...

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

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253 views

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java - why new FileWriter("abc.txt") creates a new file and new File("abc.txt") does not?

new File("abc.txt") does not create actual file while new FileWriter("abc.txt") creates a file on disk. While ... object of file like new File() 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 a spiderchart above a existing JfreeChart

I have one a jfree chart which I can generate everytime I run the code. Now i want to override few more ... and taking efforts to see this. See Question&Answers more detail:os...

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

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249 views

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java - Swing timer not stopping

I'm using the swing Timer to make a countdown clock in Netbeans: public void startTimer() { System.out.println( ... .displayTimer.stop(); } } 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 - Reading a File From the Computer

Now I have this error: Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 4 at Lotto1.main(Lotto1.java ... does not exist"); } See Question&Answers more detail:os...

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

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209 views

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java - Multiple JOptionPane input dialogs?

I've been looking for the past hour, but I haven't been able to find the solution I am looking for. I'm wanting ... close(); input4.close(); } } 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 - jTable and Sorting

How do i sort jtable column using radio button? my jtable is defaultTableModel not vectors. I have already achieve ... best way to achieve this? See Question&Answers more detail:os...

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

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722 views

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java - How to print keys with duplicate values in a hashmap?

I have a hashmap with some keys pointing to same values. I want to find all the values that are equal and ... adds every key one time. 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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105 views

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java - Android:Issue Image resolution

Problem occurs while using high resolution image in device. imageview a; InputStream ims = getAssets().open("sam. ... to solve this issue? See Question&Answers more detail:os...

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

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175 views

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java - AppCompat does not support the current theme

My app is running fine on Android N, but is crashing at setContentView(R.layout.activity_main) on Android M: Caused ... with my theme at all? See Question&Answers more detail:os...

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

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201 views

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java - Correct way of thinking about primitive assignment

In this example, int x = 5; int y = x; x = 4; y will remain 5 because x is just being reassigned and it ... and that duplication is put in 'y'. 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 - Spring @Autowired with 2 beans of the same type

I have the following defined. @Autowired DaoType1<object1> someDao; @Autowired DaoType1<object1> someListDao; and in my ... xml files at all. 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 - Why i am getting type mismatch: cannot convert from int to byte

class Test { public static void main(String[] args) { byte t1 = 111; byte t2 =11; byte t3 = t1+t2; ... this error here. 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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486 views

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java - Remove specific characters inside parentheses using regex

I have a line like this: BlockedMatch(XA, YB), Correlation(XA, QC), Correlation(YB, QC), Correlation(QC ... ) when it occurs inside parentheses? See Question&Answers more detail:os...

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

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107 views

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java - Reading/Writing to Properties Files inside the jar file

So i am getting back into writing Java after 4 years so please forgive any "rookie" mistakes. I need to ... the properties file afterwords. Why? See Question&Answers more detail:os...

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

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134 views

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java - Error installing JDK

I got following error while installing JDK 1.7 on windows 8. "Error 1335. The cabinet file 'st170510.cab' required ... JRE 1.7 on my system. See Question&Answers more detail:os...

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

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