Java 归档 - Page 129 of 655

Java 8 stream adds a new object to the list from the return value

I want to save the return value of the method and use it to create a new object and add it to the list Here is a clear……

Java

2020-08-21

Java – no data source is configured to run this SQL

I have a problem creating tables (for databases) in Java At present, I am using IntelliJ idea. When I write code to cr……

Java

2020-08-21

Redundant wording in Java array and ArrayList declarations

A typical ArrayList declaration in Java has the following types: ArrayList<Object> name = new ArrayList<Objec……

Java

2020-08-21

Parallel programming with threads in Java

Let's say that in Java, using executorservice, I create a 4-thread thread pool and submit it to say 10 tasks, which me……

Java

2020-08-21

Java – why do programmers say “pass by reference” is actually “pass by value?” Why is this important?

I know in C & amp; The entire concept passed by reference in C. And similar concepts only pass values in Java void……

Java

2020-08-21

com. sun. mail. smtp. SMTPSendFailedException：530-5.5. 1 requires authentication (java mail)

So I tried to make java mail work, because the other answers I saw on this website were useless. I had to assume that ……

Java

2020-08-21

Set tooltips on all table cells in JavaFX

My application contains a tableview Change the row style by setting a custom cell factory with setcellfactory for this……

Java

2020-08-21

Java swing error ‘void’ type ‘is not allowed here

See the English answer > "'void 'type not allowed here" error (Java) 6 Code: public void create(JPanel jp){ jp.……

Java

2020-08-21

Sorting tuple counts in Java

I'm building a class with string to integer mapping So if I have three apples, I will map apples to three I need to wr……

Java

2020-08-19

Java – multiple swing event dispatch threads

I want to create a new event dispatch thread in swing, but I can't find any references online about how to do this I c……

Java

2020-08-19

Java socket non blocking read

I am using datainputstream to read characters / data from the socket I want to use it readUnsignedShort(); If there ar……

Java

2020-08-19

Java – how to get to the middle of a singular linked list in an iteration?

Recently, I was asked a question, how do we get to the middle of the list in an iteration in a separate linked list A ……

Java

2020-08-19

java. Lang. runtimeException: facescontext not found (JSF 1.2 primefaces Tomcat 6)

See English answer > java Lang. runtimeException cannot find facescontext 1 SEVERE: Servlet.service() for servlet j……

Java

2020-08-19

Java – using runtime getRuntime(). Exec run Excel

try { try { Runtime.getRuntime().exec("excel C:\\file.xls"); } catch (IOException ex) { System.out.println(ex)……

Java

2020-08-19

How to translate strings using Java?

I want a translation routine that allows me to effectively translate any character into any other character or charact……

Java

2020-08-19

Java – detects when the user has finished resizing the SWT shell

I have a resizable SWT shell Every time I resize, I have to do something computationally intensive I can register a co……

Java

2020-08-19

Java – why do the StringBuffer and StringBuilder append methods discard the value returned by the super call

This is a question of curiosity public StringBuilder append(String str) { super.append(str); return this; } Ab……

Java

2020-08-19

Java scheduled tasks (in Windows)

I have a problem. I want to schedule a specific Java application to run every x days, or every X minutes I really want……

Java

2020-08-19

MVC pattern in Java swing?

Please give an example of the MVC pattern used in the Java Swing package? Solution Basically, the swing component itse……

Java

2020-08-19

Java – what are the disadvantages of writing! string. isEmpty()？

In if statements in Java code, I often read if (string! = null & & string. Isempty() = = false) and so on I am……

Java

2020-08-19

Build a simple GUI using the swing Library in Java 1.6

I'm trying to build a simple GUI using the swing library I don't understand why my table is deleting everything previo……

Java

2020-08-19

Vcdiff or alternate binary difference format for Java

Is there an open source Java implementation of vcdiff binary differential format (decoder and encoder)? There are xdel……

Java

2020-08-19

Java – how to perform a series of sorting operations (multiple sorting conditions) on ArrayList

I have an ArrayList of objects on which I want to run a series of sorting operations I want to sort them by name first……

Java

2020-08-19

Java – a system that players drop (basically gravity)

I'm making a game like Doodle Jump to make your players as high as possible Now I let my player work and move But the ……

Java

2020-08-19

Java – a faster way to batch save using Hibernate?

I have a program that reads text files line by line, creates a hibernate entity object from each line, and saves them ……

Java

2020-08-19

Executing UNIX system commands from Java problems

I encountered a strange problem when executing system commands from Java code Runtime. getRuntime(). exec(“system_prof……

Java

2020-08-19

Java – questions about polymorphism and overloading

I try to understand the concepts of polymorphism and overloading I have the following code as an experiment However, I……

Java

2020-08-19

Java – third party object whose design pattern is “toString”

I have a third-party object that uses from Java ToString method inherited from lang.Object This method is useless But ……

Java

2020-08-19

java – super. Problems with paintcomponent (g)

This is a clip: protected void paintComponent(final Graphics g) { Runnable r=new Runnable() { @Override public ……

Java

2020-08-19

Java – the problem of compiling JUnit test classes with ant

I'm working on JUnit with ant build There was a problem integrating XML files My test class is in the same directory a……

Java

2020-08-19

Java – opengl for space simulator

Together with several friends, we started this Java based project independent of amateur platform for space combat sim……

Java

2020-08-19

Java – record each jsp: include

resolvent

Java

2020-08-19

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Java 8 stream adds a new object to the list from the return value

Java – no data source is configured to run this SQL

Redundant wording in Java array and ArrayList declarations

Parallel programming with threads in Java

Java – why do programmers say “pass by reference” is actually “pass by value?” Why is this important?

com. sun. mail. smtp. SMTPSendFailedException：530-5.5. 1 requires authentication (java mail)

Set tooltips on all table cells in JavaFX

Java swing error ‘void’ type ‘is not allowed here

Sorting tuple counts in Java

Java – multiple swing event dispatch threads

Java socket non blocking read

Java – how to get to the middle of a singular linked list in an iteration?

java. Lang. runtimeException: facescontext not found (JSF 1.2 primefaces Tomcat 6)

Java – using runtime getRuntime(). Exec run Excel

How to translate strings using Java?

Java – detects when the user has finished resizing the SWT shell

Java – why do the StringBuffer and StringBuilder append methods discard the value returned by the super call

Java scheduled tasks (in Windows)

MVC pattern in Java swing?

Java – what are the disadvantages of writing! string. isEmpty()？

Build a simple GUI using the swing Library in Java 1.6

Vcdiff or alternate binary difference format for Java

Java – how to perform a series of sorting operations (multiple sorting conditions) on ArrayList

Java – a system that players drop (basically gravity)

Java – a faster way to batch save using Hibernate?

Executing UNIX system commands from Java problems

Java – questions about polymorphism and overloading

Java – third party object whose design pattern is “toString”

java – super. Problems with paintcomponent (g)

Java – the problem of compiling JUnit test classes with ant

Java – opengl for space simulator

Java – record each jsp: include

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