Java 归档 - Page 47 of 655

Java – this view is not constrained

I received the following error, I used Android studio 2.2 preview 3 I searched Google but couldn't find any resources ……

Java

2020-09-15

Java – Android gets the date 7 days ago (one week)

How to get the date in android in this format within the previous week: SimpleDateFormat dateFormat = new SimpleDateFo……

Java

2020-09-15

Java – face recognition API

Using Java and Android, I tried to find a way to recognize faces with a given picture of the camera Any ideas? Does an……

Java

2020-09-15

Java – what is a stack mapping framework

I've been paying attention to Java virtual machine specifications (JVMs) recently, trying to better understand how my ……

Java

2020-09-15

java – Google Guava vs. Apache Commons

I was looking for a bidirectional map implementation in Java and came across these two libraries: >Google guava (fo……

Java

2020-09-15

Java – minimize the jinternal framework without clicking a button

Is there any way to minimize / maximize jinternalframe without clicking the minimize / maximize button in the upper ri……

Java

2020-09-15

Java keylistener and keybinding

I want to write a calculator and have a problem I have created an action listener for all buttons, and now I want to b……

Java

2020-09-15

Javafx-8 – launching a JavaFX application from another class

I need to start a JavaFX application from another "container" class and call the function on the application, but ther……

Java

2020-09-15

Java – what is the best practice for rounding floating point numbers to 2 decimal places?

See English answers > how to round a number to N decimal places in Java 29 I need to round the floating point value……

Java

2020-09-15

Java – how do I get the start and end ranges from the timestamp list?

I have such a timestamp string: 2016-01-14T22:43:55Z 2016-01-15T00:04:50Z 2016-01-15T00:44:59+08:30 2016-01-15T01:25:3……

Java

2020-09-15

Java – use jinternalframe and some buttons

Can we use jinternalfame with buttons in the main frame? Of course, the framework contains jdesktopane How about this ……

Java

2020-09-15

Java splits strings into arrays

See English answers > java string split removed empty values 6 String values = "0|0|0|1|||0|1|0|||"; I need to put ……

Java

2020-09-15

How to add rows and columns to JavaFX 8 tableview

I saw an example of adding rows to tableview on the Internet, such as using the person class in Oracle documentation B……

Java

2020-09-15

How to add shortcut keys to JButton in Java?

I have a JButton and I want to assign a shortcut to it Just like I press delete it on the keyboard, just click JButton……

Java

2020-09-15

Java – how to insert objects in an ArrayList at a specific location

Suppose I have an ArrayList of an object of size n Now I want to insert another object at a specific location, assumin……

Java

2020-09-15

What is a native implementation in Java?

See English answer > what is the native keyword in Java for? 9 public native int hashCode() protected native Object……

Java

2020-09-15

Java – hibernate composite key

Is it necessary to map the composite ID to the class? Can you do this? <composite-id> <key-property=..../&g……

Java

2020-09-15

Erlang processes and Java threads

I'm reading "elixir in action" book by SA š a Juri ć, And in the first chapter: Isn't that true for Java threads? I me……

Java

2020-09-15

Java – algorithm of 2D ray tracker

I want to write a programmed raytracer in Java for presentation purposes and give a general ray tracing presentation (……

Java

2020-09-15

Using java_ Opts env variable running Java is invalid

In the shell script, I set up Java_ Opts environment variable (to enable remote debugging and increase memory), and th……

Java

2020-09-15

When JavaMail is executed, all jframes are frozen

I develop the program of automobile management system Then, when the car comes in and drives, I want to send an email ……

Java

2020-09-15

Java – error: unable to find or load the main class in the IntelliJ ide

I'm a beginner in Java. I'm trying to run my code using IntelliJ. I just installed JDJ 1.7 as my ide The following cod……

Java

2020-09-15

How to convert Java result sets to JSON?

I used the MySQL query of JDBC connector to get a result set So my job is to convert the result set to JSON format So ……

Java

2020-09-15

Java replacement regular expressions do not work properly

Why doesn't this line of code work? It should replace all punctuation with nothing m = m.replace("[\\?\\.;:'\"]","") A……

Java

2020-09-15

The easiest to understand example of volatile keyword in Java

I am reading the volatile keyword in Java and fully understand its theoretical part But what I'm looking for is a good……

Java

2020-09-15

Implementation of Java JDBC interface

In JDBC, in order to connect and execute statements in dB, we mainly use connection, statement and resultset as interf……

Java

2020-09-15

What are JAVA memory management best practices?

I'm taking over some applications from former developers When I run the application through eclipse, I see a lot of in……

Java

2020-09-15

Java – attach a single action listener to all buttons

I have a program with many buttons, all of which will perform the same function I wonder if there is a way to attach a……

Java

2020-09-15

Java – play multiple sound clips using clip objects

I'm developing a program that contains a large number of JButton objects. I hope each object has its own Wav file In a……

Java

2020-09-15

Reverse single linked list Java

How to reverse a singly linked list in blocks of some given size in O (n) time in place? 4 public void reverseList(){ ……

Java

2020-09-15

JAVA_ What is the reason for the existence of the home environment variable?

Many Java based applications need to set up Java_ Home env variable What is the purpose of this variable? Solution An ……

Java

2020-09-15

Java – abnormal behavior of the zoom in and zoom out function of JfreeChart?

I observed that the functions of "zoom in" and "zoom out" were completely different from those expected For example, w……

Java

2020-09-15

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Java – this view is not constrained

Java – Android gets the date 7 days ago (one week)

Java – face recognition API

Java – what is a stack mapping framework

java – Google Guava vs. Apache Commons

Java – minimize the jinternal framework without clicking a button

Java keylistener and keybinding

Javafx-8 – launching a JavaFX application from another class

Java – what is the best practice for rounding floating point numbers to 2 decimal places?

Java – how do I get the start and end ranges from the timestamp list?

Java – use jinternalframe and some buttons

Java splits strings into arrays

How to add rows and columns to JavaFX 8 tableview

How to add shortcut keys to JButton in Java?

Java – how to insert objects in an ArrayList at a specific location

What is a native implementation in Java?

Java – hibernate composite key

Erlang processes and Java threads

Java – algorithm of 2D ray tracker

Using java_ Opts env variable running Java is invalid

When JavaMail is executed, all jframes are frozen

Java – error: unable to find or load the main class in the IntelliJ ide

How to convert Java result sets to JSON?

Java replacement regular expressions do not work properly

The easiest to understand example of volatile keyword in Java

Implementation of Java JDBC interface

What are JAVA memory management best practices?

Java – attach a single action listener to all buttons

Java – play multiple sound clips using clip objects

Reverse single linked list Java

JAVA_ What is the reason for the existence of the home environment variable?

Java – abnormal behavior of the zoom in and zoom out function of JfreeChart?

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