Java 归档 - Page 121 of 655

Java lambda – finds whether any string element of a list matches any element part of another list

I have two string lists A = {"apple","mango","pineapple","banana",... } B = {"app","framework",...} What I'm looking ……

Java

2020-08-22

Java – algorithm – the largest left sub array with smaller elements

I'm developing a program. I need to get the index of elements in the integer array, so that all elements on the right ……

Java

2020-08-22

Java – what is the difference between these generic statements?

See the English answer > is this raw type assignment type safe? List = new ArrayList(); 1 Map<String,Intege……

Java

2020-08-22

Java 8 option list collection list compilation error

I can't understand the difference Stream<Optional<Integer>> optionalStream = Stream.of( Op……

Java

2020-08-22

java – /google-play-services_ lib/AndroidManifest. XML parser exception: premature end of file

I'm trying to import Google play services into eclipse_ Lib, as they said in this tutorial（ http://developer.android.……

Java

2020-08-22

Traditionally, where do you store Java Class file?

I have a Java SRC folder where I store my Java file Then I use terminal to compile them and finally get them in the sa……

Java

2020-08-22

Java – replace the list of arrayadapters

I have a custom arrayadapter that uses ArrayList < orderedproductitem > For my listview In this listview, I have……

Java

2020-08-22

Java – how to protect yourself from parameter misalignment

Suppose I have this important method: int generateId(int clientCode,int dataVersion) { return clientCode * 2 + dat……

Java

2020-08-22

Java – JPA entities with collections return false to the contains method on detached members

I have two JPA entity classes, group and user Group. java： @Entity @Table(name = "groups") public class Group { ……

Java

2020-08-22

Java – use jodatime to UTC to local time in milliseconds

I try to use jodatime to display transactions in a specific time period Our server requires the start date and end dat……

Java

2020-08-22

Java – unable to parse the import org. Org springframework. test. context. junit4. SpringRunner

I'm trying to solve this problem from now on But I still haven't solved it I just got out of spring IO downloads a spr……

Java

2020-08-22

Java – Android spinner has a different background for each line

I know this topic has been solved many times. I have found several such problems, but I can't meet my needs I want a l……

Java

2020-08-22

Java – generate unique random numbers

resolvent

Java

2020-08-22

Java – starts the enumeration as a value

I want to declare enumeration variables as values How can I do this? For example: public enum CardSuit { SPADE(0),H……

Java

2020-08-22

jsf-2 – javax. faces. Facesexception: public key for catpcha not found

I want to implement the verification code in my application, but I get this error. Can someone tell me the reason? Sol……

Java

2020-08-22

Java – sorted concurrentmodification exception

I wrote this applet to sort arrays According to my understanding, it should print 0,1,2 However, when I run this progr……

Java

2020-08-22

Java generics – a comparable interface

In the following code, the comparable interface is used to ensure that X and y should have the same reference type, bu……

Java

2020-08-22

Accessing private variables through static methods in Java

Suppose I have the following Java classes: public class A { private int x; public A(int x){ this.x……

Java

2020-08-22

What protocol does java socket use?

I started using the socket and socketserver classes in Java As mentioned above, I want to know which protocol (or what……

Java

2020-08-22

What is the reason behind dynamic method parsing in statically typed languages like Java

I'm a little confused about Java's concepts of dynamic / static types and dynamic method parsing consider: public clas……

Java

2020-08-22

Java – Apache ignite node failed: unable to read magic header

The Apache ignite server deployed on both computers will shut down automatically There is no specific clue in the log ……

Java

2020-08-22

Java – where to place the properties file in eclipse and how to access the path locally and on the server

I see some similar questions here, but I don't know much about them, so I want to ask questions and customize them in ……

Java

2020-08-22

Merge the two lists into a “two-dimensional” list in Java

See English answers > clearest way to combine two lists into a map (Java)? 15 @ h_ 502_ 7@ I have two lists: Names=……

Java

2020-08-22

Java – creates a map from a list, where the key is part of the internal and external objects

Is it possible (in a simple way) to change it to java8 stream? (please don't comment / answer, if you want to tell me ……

Java

2020-08-22

Java – read semicolon delimited CSV

I have the following code block, which uses opencsv to read CSV files and store column 7 The problem I face is that I ……

Java

2020-08-22

Java – synchronization block within synchronization block

Can I include a synchronization block in another object to synchronize another object? Example: synchronized(myObjetc1……

Java

2020-08-22

Java – does it still make sense to avoid creating objects for garbage collection?

For example, in a service adapter, you might: One There is an input data model and an output data model, which may eve……

Java

2020-08-22

Java – which file is read when you run “. / gradlew” on the command line?

I did some digging, but I didn't find much information My best guess is build Gradle files are the default, but I'm cu……

Java

2020-08-22

Java – directly from completable future Thenaccept return value

I tried to return a list from completable future as follows: public List<Provider> get() { CompletableFuture……

Java

2020-08-22

Think in Java version 4 – what is classname this. method()

Reading "thinking in Java 4th Edition", I found this example in Chapter 14: public class CoffeeGenerator implements Ge……

Java

2020-08-22

Java – unable to create a new session Error in appium code

Unable to create new session (original error: a new session is requested, but one of them is in progress) this error i……

Java

2020-08-22

Java – thread safe denies atomicboolean get() as a condition in the while loop

Suppose I have the following code: AtomicBoolean condition; condition = new AtomicBoolean(false); (...) while(!conditi……

Java

2020-08-22

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Java lambda – finds whether any string element of a list matches any element part of another list

Java – algorithm – the largest left sub array with smaller elements

Java – what is the difference between these generic statements?

Java 8 option list collection list compilation error

java – /google-play-services_ lib/AndroidManifest. XML parser exception: premature end of file

Traditionally, where do you store Java Class file?

Java – replace the list of arrayadapters

Java – how to protect yourself from parameter misalignment

Java – JPA entities with collections return false to the contains method on detached members

Java – use jodatime to UTC to local time in milliseconds

Java – unable to parse the import org. Org springframework. test. context. junit4. SpringRunner

Java – Android spinner has a different background for each line

Java – generate unique random numbers

Java – starts the enumeration as a value

jsf-2 – javax. faces. Facesexception: public key for catpcha not found

Java – sorted concurrentmodification exception

Java generics – a comparable interface

Accessing private variables through static methods in Java

What protocol does java socket use?

What is the reason behind dynamic method parsing in statically typed languages like Java

Java – Apache ignite node failed: unable to read magic header

Java – where to place the properties file in eclipse and how to access the path locally and on the server

Merge the two lists into a “two-dimensional” list in Java

Java – creates a map from a list, where the key is part of the internal and external objects

Java – read semicolon delimited CSV

Java – synchronization block within synchronization block

Java – does it still make sense to avoid creating objects for garbage collection?

Java – which file is read when you run “. / gradlew” on the command line?

Java – directly from completable future Thenaccept return value

Think in Java version 4 – what is classname this. method()

Java – unable to create a new session Error in appium code

Java – thread safe denies atomicboolean get() as a condition in the while loop

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