Java 归档 - Page 272 of 655

Can I declare a 1-bit variable in Java?

My algorithm uses a huge Boolean array. As I taught, each boolean variable needs 1 byte Declare a Boolean array anyway……

Java

2020-03-16

Java DOM XML cannot get child

My XML looks like this: <ConnProf ConnProfID="1111"> <ConnNum>1</ConnNum> <IsMSPA>false<……

Java

2020-03-16

java. Lang.illegalstateexception: the response submitted in the servlet cannot be forwarded

See English answer > java Lang. IllegalStateException: cannot (forward | sendredirect | create session) after respo……

Java

2020-03-16

Javafx-2 – internal framework in JavaFX

I found this example of an internal framework http://docs.oracle.com/javase/tutorial/uiswing/components/internalframe.……

Java

2020-03-16

Java stream – the result is obtained after splitting the string twice

I have a string: String modulesToUpdate = "potato:module1,tomato:module2"; I want to get it from it: module1 module2 F……

Java

2020-03-16

Java – what is the best way to find the first repeating character in a string

I wrote the following code to detect the first duplicate character in the string public static int detectDuplicate(Str……

Java

2020-03-16

JSF – P: autocomplete itemlabel throws “class’ Java. Lang. string ‘has no attribute’ label ‘.”

I'm changing from icefaces to primefaces (I really want to change RichFaces, but I won't cause errors in the new versi……

Java

2020-03-16

In Java, is there a more elegant way to remove duplicate strings from the ArrayList of strings?

So, in short, I have a Java job assignment that needs to manipulate the long ArrayList of strings in various ways (wha……

Java

2020-03-16

Profile java code

I need to describe my java SRC code for some specific problems I am currently dealing with I've been using a trial ver……

Java

2020-03-16

Java – how to use scheme / LISP / clojure to deal with matrix / LP problems?

I need to do numerical analysis supported by MATLAB or numpy Thank you. Solution For Common Lisp, see >Matlisp: mat……

Java

2020-03-16

Java — the problem of adjusting canvas in JScrollPane in jsplitpane

I am using NetBeans GUI editor to create an application. I want to have a jsplitpane in it. The top component will be ……

Java

2020-03-16

Java – is it better for libgdx to use spritesheet or a single image?

I'm new to libgdx. I made 40 frames for the "hero run" wizard. I don't know if it's better to use spritesheet or a sin……

Java

2020-03-16

Java – how do I run unit tests against only changed source files?

Is there a way for me to run unit tests only for the Java classes it builds? For example, if MyClass If Java has expir……

Java

2020-03-16

Java – how to ignore spaces when reading files to generate XML DOM

I'm trying to read a file to generate a DOM document, but the file has spaces and newlines. I try to ignore them, but ……

Java

2020-03-16

What is the equivalent of unsigned long in Java

I wrote the following three functions for my project: WORD shuffling(WORD x) { // WORD - 4 bytes - 32 bits //given i……

Java

2020-03-16

Java – does spring provide securitycontext for threads executing hystrix commands

I'm running a spring boot application and just started integrating hystrix from spring cloud Netflix I'm using @ hystr……

Java

2020-03-16

Why doesn’t Java support structure? (just out of curiosity)

I know you can use the public domain or some other solution Maybe you don't need them at all But out of curiosity, why……

Java

2020-03-16

Java – array recursion

I have a task I can't figure out. Any pointer will be very grateful. It is like this: A series of bulbs are represente……

Java

2020-03-16

Java – why doesn’t 0.0F / 0.0F produce any runtime errors?

Recently I tested the following program & I expect runtime errors, but it displays "Nan" as output Why & how? ……

Java

2020-03-16

Final variables and synchronization blocks in Java

What is the final variable in Java? For example, if I write the final int temp; What is the meaning of the final keywo……

Java

2020-03-16

Java – how do I run unit tests against only changed source files?

Is there a way for me to run unit tests only for the Java classes it builds? For example, if MyClass If Java has expir……

Java

2020-03-16

Java operator, used to check whether two conditions are false, but not both conditions are false

If any condition is false, will the operator in Java give a result of false, but if both are true or both are false, t……

Java

2020-03-16

Java – guava set: limit the size of the permutation

Use guava 12 collections2 Permutations(), I wonder if I can limit the size of the permutation? More precisely, I want ……

Java

2020-03-16

How do I run the 32-bit API on a 64 bit computer?

I'm writing a Java application that must communicate with it. It must communicate with XBee radio through USB cable To……

Java

2020-03-16

Java – when I need to be in optional Use optional. On orelse() When orelseget()

I need to make a clear explanation for this. Even if I am reading this link about differences, there is no clear defin……

Java

2020-03-16

Java – default expiration time of Google guava cache

I want to know the default expiration policy of guava cache Solution Suppose you're talking about cache builder From G……

Java

2020-03-16

What can be in the parentheses of a Java for loop?

My question is about Java for statements, such as for (int i = 0; i < 10; ++i) {/* stuff */} What I don't understan……

Java

2020-03-16

Java – uses the simulated location without setting it in the settings

I'm writing an application that takes advantage of the location simulation possibilities in Android What I want to ach……

Java

2020-03-16

What is the empty session path in Java – Tomcat?

I read the Apache Tomcat document the day before. I was confused about emptysessionpath As far as I know, if set to tr……

Java

2020-03-16

Java – JUnit test case for database insertion method using DAO and Web Services

I am implementing a university management system based on Web services The system adds some courses to the database He……

Java

2020-03-16

Project Euler #1 in Java

I encountered a problem with this code I don't want to see others, so I want to know what my fault is If we list all n……

Java

2020-03-16

If the string in LISP is a vector, why can’t I use svref to access the first element?

So, I'm trying to learn lisp. I have a problem defining what a string is I'm reading Paul Graham's ANSI Common Lisp. I……

Java

2020-03-16

搜索内容

Can I declare a 1-bit variable in Java?

Java DOM XML cannot get child

java. Lang.illegalstateexception: the response submitted in the servlet cannot be forwarded

Javafx-2 – internal framework in JavaFX

Java stream – the result is obtained after splitting the string twice

Java – what is the best way to find the first repeating character in a string

JSF – P: autocomplete itemlabel throws “class’ Java. Lang. string ‘has no attribute’ label ‘.”

In Java, is there a more elegant way to remove duplicate strings from the ArrayList of strings?

Profile java code

Java – how to use scheme / LISP / clojure to deal with matrix / LP problems?

Java — the problem of adjusting canvas in JScrollPane in jsplitpane

Java – is it better for libgdx to use spritesheet or a single image?

Java – how do I run unit tests against only changed source files?

Java – how to ignore spaces when reading files to generate XML DOM

What is the equivalent of unsigned long in Java

Java – does spring provide securitycontext for threads executing hystrix commands

Why doesn’t Java support structure? (just out of curiosity)

Java – array recursion

Java – why doesn’t 0.0F / 0.0F produce any runtime errors?

Final variables and synchronization blocks in Java

Java – how do I run unit tests against only changed source files?

Java operator, used to check whether two conditions are false, but not both conditions are false

Java – guava set: limit the size of the permutation

How do I run the 32-bit API on a 64 bit computer?

Java – when I need to be in optional Use optional. On orelse() When orelseget()

Java – default expiration time of Google guava cache

What can be in the parentheses of a Java for loop?

Java – uses the simulated location without setting it in the settings

What is the empty session path in Java – Tomcat?

Java – JUnit test case for database insertion method using DAO and Web Services

Project Euler #1 in Java

If the string in LISP is a vector, why can’t I use svref to access the first element?

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