Java 归档 - Page 281 of 655

Used to represent a number as string, integer All possible characters of Java

In integer In Java, there are the following codes: /** * All possible chars for representing a number as a String */……

Java

2020-03-10

Java – SSL configuration in Tomcat and APR

I encountered a problem setting my Tomcat using APR native lib, Tomcat: 7.0.42 Java: 1.7.0_40-b43 OS: Centos 6.4 (2.6.……

Java

2020-03-10

Java – number of elements in ArrayList

How much data can a list can hold at the maximum? 8 Solution ArrayList cannot hold more than integer MAX_ Value is an ……

Java

2020-03-10

Java – NullPointerException reflected when robolectric starts – any hint?

I'm developing an Android project on eclipse and I'm trying to switch from running tests on the simulator / device (ve……

Java

2020-03-10

Java – is there any way to extract the primary key (or ROWID) using namedparameterjdbctemplate and generatedkeyholder?

I tried to extract ROWID or primary key using spring's namedparameterjdbctemplate and generatedkeyholder I want to do ……

Java

2020-03-10

Java – basic machine learning

I am a novice in machine learning... I am developing a tool in which I need to predict the value of variables accordin……

Java

2020-03-10

Java – how to use the current date as the input of the function to get the month name

How to create a function to get the current date and return the month name? For example, string MonthName ("September ……

Java

2020-03-10

Is there a Java enum in European countries and languages?

Are there any Java (> 5) enumerations for listing European countries and languages somewhere? But if I can avoid th……

Java

2020-03-10

Java – what is the difference between jaxp, JDOM, Dom4j and Xerces?

What's the difference between them? It is said that jaxp is just an API specification, which is implemented by JDOM an……

Java

2020-03-10

Java – can sockets accessed in different programming languages communicate?

Is the socket programming language independent? Can I keep the server written in Java and the client written in C? Sol……

Java

2020-03-10

Java – the program continues to run despite the interruptedexception

I started learning Java, and now I'm in the concurrency chapter After reading something about concurrency, I tried my ……

Java

2020-03-10

Java – (simple) dateformat, allowing 24:00:00 and 00:00:00 as input

I've been looking for this, but I haven't succeeded so far Do you know if there is a "dateformat" ish class, which wil……

Java

2020-03-10

2D array problem Java

If I have a 2D array arr [rows] [columns], how can I find the size of rows and columns respectively with arr.length? S……

Java

2020-03-10

Java – unconditionally execute tasks in ant?

I'm trying to define the task of sending (using echo) messages when the target completes execution, whether the target……

Java

2020-03-10

Java – sample programs are required to throw interruptedexception

I'm going through Chapter 9 (threads) of Kathy Sierra scjp 1.5, which is mentioned: I just need a sample program to kn……

Java

2020-03-10

Java – you can specify an integer value for char, but you cannot assign an integer variable to char

Why not compile the following code int n = 5; char c = n; But the following compilation char c = 5; In both cases, don……

Java

2020-03-10

Java – the target fragment declared by the fragment does not belong to this fragmentmanager

I did an activity a, in which there is a fragment X. through fragment x, edit and click the text item on the event. I ……

Java

2020-03-09

Java – Kerberos for thrift?

I have a simple java application based on thrift This is very simple, just using thrift's "Hello world" message transm……

Java

2020-03-09

Java – psqlexception: error: syntax error at or near

I think JPA is a direct relationship It looks like this CompanyGroup： @Entity @Table public class CompanyGroup implem……

Java

2020-03-09

Java – how to print SOAP message content when using Apache axis

I am using Apache axis for web service automation I am preparing the soap request through axis and further accessing t……

Java

2020-03-09

Java – how to iterate over lists such as list >

I have a method to return list < map < string, Object > > How to iterate like list < map < string, O……

Java

2020-03-09

Is there any way to focus on JavaFX?

I know you can execute node Requestfocus() to focus on nodes in JavaFX But is there any way to remove focus from nodes……

Java

2020-03-09

Java generics

I want to implement a method that takes object as a parameter, converts it to any type, and returns NULL if it fails T……

Java

2020-03-09

Java – should a class implement an interface with only constants?

Today, I looked at the zipentry class and found the following: public class ZipEntry implements ZipConstants,Cloneable……

Java

2020-03-09

Java – how does this cause deadlocks?

I was brushing my java and was asked this question in the exercise How can the following cause deadlock? private Objec……

Java

2020-03-09

Creating collections in mongodb using java

resolvent

Java

2020-03-09

Logical operations on Java enumerations

I have a project where I have to deal with different subsets of large data sets in different scenarios The way I write……

Java

2020-03-09

Using private methods from another class in Java

I have two classes: public class Class1{} public class Class2{ private void simpleMethod(){ /*...*/ } } In class2,……

Java

2020-03-09

Convert int to object in Java

I have a problem: I work in an eclipse environment Sometimes the computer does not give the following conversion: int ……

Java

2020-03-09

Java – JPA criteriabuilder upper gives a compilation error

I am trying to use criteriabuilder for case insensitive queries, as described in Hibernate JPA criteriabuilder ignore ……

Java

2020-03-09

Java – a regular expression used to split a German address into its parts

Good evening, I tried to split the parts of the German address string into its parts through Java Does anyone know reg……

Java

2020-03-09

java – Quartz StatefulJob / non-StatefulJob

Can you explain to me the exact average value of statefuljob in quartz, which is different from that without statefulj……

Java

2020-03-09

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Used to represent a number as string, integer All possible characters of Java

Java – SSL configuration in Tomcat and APR

Java – number of elements in ArrayList

Java – NullPointerException reflected when robolectric starts – any hint?

Java – is there any way to extract the primary key (or ROWID) using namedparameterjdbctemplate and generatedkeyholder?

Java – basic machine learning

Java – how to use the current date as the input of the function to get the month name

Is there a Java enum in European countries and languages?

Java – what is the difference between jaxp, JDOM, Dom4j and Xerces?

Java – can sockets accessed in different programming languages communicate?

Java – the program continues to run despite the interruptedexception

Java – (simple) dateformat, allowing 24:00:00 and 00:00:00 as input

2D array problem Java

Java – unconditionally execute tasks in ant?

Java – sample programs are required to throw interruptedexception

Java – you can specify an integer value for char, but you cannot assign an integer variable to char

Java – the target fragment declared by the fragment does not belong to this fragmentmanager

Java – Kerberos for thrift?

Java – psqlexception: error: syntax error at or near

Java – how to print SOAP message content when using Apache axis

Java – how to iterate over lists such as list >

Is there any way to focus on JavaFX?

Java generics

Java – should a class implement an interface with only constants?

Java – how does this cause deadlocks?

Creating collections in mongodb using java

Logical operations on Java enumerations

Using private methods from another class in Java

Convert int to object in Java

Java – JPA criteriabuilder upper gives a compilation error

Java – a regular expression used to split a German address into its parts

java – Quartz StatefulJob / non-StatefulJob

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