Java 归档 - Page 48 of 655

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

Annotation method in Java

5. General notes Refer to Java core technology Volume I for the above contents

Java

2020-09-13

Install Ubuntu in the virtual machine

12. After the installation is completed, click "restart now" in the pop-up dialog box; 13. Prompt to remove the instal……

Java

2020-09-12

Java different time format conversion

Date --> String You can specify the corresponding pattern during conversion.

Java

2020-09-11

Multithreading — concurrency

Three of them (iterators, generators and decorators) are important parts of Python's high-level syntax!

Java

2020-09-11

STL – STL summary

6、 Deque ·#Include < deque > · double ended queue· Common interfaces: front(), back(); push_ back(),push_ front……

Java

2020-09-10

Trying to understand class inheritance in Java

Let me say I have a super class public class SuperSub { public void overideThisMethod(){ System.out.println("Pri……

Java

2020-09-09

Nanosecond time in Java, do not use Java util. Date

I need as little garbage collection (GC) as possible, very accurate and accurate time, ideally once a day System. Curr……

Java

2020-09-09

Java – spring sleuth and Zipkin: artifact IO not found zipkin. brave：brave-bom：pom：4.16. 3-SNAPSHOT

I have a spring boot 2.0 0 rest service, I tried to ask sleuth and Zipkin to send the trace to my localhost Zipkin ser……

Java

2020-09-09

Java – Jenkins: unable to run the program “docker”: error = 2, there is no such file or directory

I installed Jenkins on my local machine, which runs on MacOS High Sierra and installs docker I'm trying to run a simpl……

Java

2020-09-09

Java – Android architecture blueprint “todo MVP dagger”, where is @ provides for tasksrepository?

View the Android architecture blueprint "todo MVP dagger" here: https://github.com/googlesamples/android-architecture.……

Java

2020-09-09

Java – the value passed by the unit test to the static method

Example code: class MyClass { public void myMethod(Request request) { Item item = getItem(); ItemU……

Java

2020-09-09

Java bitwise “&” on integer

I have the following: int a = 10001000; int b = 10000000; I want the following output: (a&b) = 10000000; But my p……

Java

2020-09-09

How to create subclasses so that parameters belong to subclass types in Java

I have an abstract parent class animal: public abstract class Animal { public abstract <T extends Animal> T ……

Java

2020-09-09

Ui5 – technical part – signature board

2.Javascript 1 jQuery(function() { 2 sap.ui.core.Control.extend(‘SignaturePad‘,{ 3 Metadata: { 4 ……

Java

2020-09-09

Java lambda expression: incompatible type: error return type in lambda expression

I have the following worklists, each of which is a list of profits and difficulties: List<List<Integer>> j……

Java

2020-09-09

Dplyr: select all variables except those contained in the vector

This should be a simple question, but I'm trying I have a variable name vector that I want to exclude from the data fr……

Java

2020-09-09

Java – warning: unclosed file of type ‘[io. Realm. Orderlistrealmproxy]’; These types are not annotated

What is wrong?! Solution This is because you are using list < > instead of realmlist < > you extend realmo……

Java

2020-09-09

Java reactor: how to generate flux from stdin?

I want to read user generated messages from stdin asynchronously Flux.from(stdinPublisher()) .subscribe(msg ->……

Java

2020-09-09

How to properly close JavaFX alerts / filechooser, etc

I am looking at this problem JavaFX show dialogue after thread task is completed, but my problem is just the opposite ……

Java

2020-09-09

Java recursion does not iterate over all top-level elements

I face the problem of recursion I have an object that contains its own list. Each object in the list can save its own ……

Java

2020-09-09

For loop to Java 8 stream foreach()

See English answers > break or return from Java 8 stream for each? 11 If any value does not exist, it immediately r……

Java

2020-09-09

java – Guice Bind Generic Types

Is there any way to bind the generic type of the following type: public interface A<T extends Number> { void p……

Java

2020-09-09

Java – how to short circuit when calculating duplicate values between two lists?

I have 2 lists. I need to calculate / check the duplicate elements in list a that match the elements in List B in the ……

Java

2020-09-09

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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

Annotation method in Java

Install Ubuntu in the virtual machine

Java different time format conversion

Multithreading — concurrency

STL – STL summary

Trying to understand class inheritance in Java

Nanosecond time in Java, do not use Java util. Date

Java – spring sleuth and Zipkin: artifact IO not found zipkin. brave：brave-bom：pom：4.16. 3-SNAPSHOT

Java – Jenkins: unable to run the program “docker”: error = 2, there is no such file or directory

Java – Android architecture blueprint “todo MVP dagger”, where is @ provides for tasksrepository?

Java – the value passed by the unit test to the static method

Java bitwise “&” on integer

How to create subclasses so that parameters belong to subclass types in Java

Ui5 – technical part – signature board

Java lambda expression: incompatible type: error return type in lambda expression

Dplyr: select all variables except those contained in the vector

Java – warning: unclosed file of type ‘[io. Realm. Orderlistrealmproxy]’; These types are not annotated

Java reactor: how to generate flux from stdin?

How to properly close JavaFX alerts / filechooser, etc

Java recursion does not iterate over all top-level elements

For loop to Java 8 stream foreach()

java – Guice Bind Generic Types

Java – how to short circuit when calculating duplicate values between two lists?

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