Recent questions tagged java

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I'm the product of some broken teaching and I need some help. I know that there is this thing called the "main ... void main(String[] args){ } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why does my Tomcat only open 8 JDBC connections

When setting up the database connections in Tomcat 8, for some reason Tomcat is not following what I ... .getConnection(ServiceLocator.java:32) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How does the JLS specify that wildcards cannot be formally used within methods?

I've always been wondering about some weird aspect of Java generics and the use of wildcards. Let's say, I ... this lacking compiler "feature"? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Meaning of the Dollar symbol ($) in the log messages

java.util.ConcurrentModificationException: null java.util.HashMap$HashIterator(HashMap.java:806) com.cimba.gsr.fragments. ... is it ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - cyclical generics (try 2)

Second attempt at this question (the initial code wasn't enough to highlight the issue) Here is the code that does ... game.play(player); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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295 views

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java - NumberFormatException Error

the code is: editText2=(EditText) findViewById(R.id.editText2); editText3=(EditText) findViewById(R.id.editText3); ... : Invalid float: "" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Admob ad not resizing correctly upon screen orientation [Includes Pictures]

I am using Admob for ads in my app and I ran into a problem. Whenever I turn the screen to landscape ... the manifest for my main activity? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Adding a watermark to an empty JCombobox

I'm trying to reproduce the behavior of the search field of Firefox or Safari, or the search field of ... the instruction text comes back. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to use TypeToken to get type parameter?

I am attempting to look up a type parameter at runtime using TypeToken as showing in the Guava documentation ... getting class MyEnum instead? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - - Syntax error on token ".", @ expected after this token

My Eclipse worked fine a couple of days ago before a Windows update. Now I get error messages whenever I' ... (" to complete MethodHeaderName" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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379 views

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java - Jersey 2 + Spring: @Autowired is null

I'm trying to use Jersey 2 with Spring with help of this article: How to use Jersey ... /pom.xml?at=master See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

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java - How to update a JLabel text?

I am making a Hangman game and one of the things I want to make is JLabel text , which updates with ex."_ _ ... . I can share code if you want. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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110 views

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java - Getting the range of a numeric stream

Given a DoubleStream s, I can do s.min() or s.max() but not both, as any one of them will consume the stream. ... ).min(),s.stream().max());) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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java - Closing a dialog created by JOptionPane.showOptionDialog()

I am creating an options dialog using JOptionPane.showOptionDialog(...); For the options parameter I am passing an ... a static context". Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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139 views

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java - Difference between these two conditions?

Sorry if my question is silly or not it doesnot matter. But i just want to know what will happen ... difference between these two conditions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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412 views

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java - ORA-00933 SQL command not properly ended but good in SQL Developer

I am hoping someone can find what is the issue with my query because I am unable to see fault in it and Oracle ... So, what could I be missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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116 views

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java - Authorization to Google Client

I am writing a class for creating authorization to BigQuery and Google Cloud Storage. In the past I have used ... to achieve this? Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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563 views

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java - Spring Boot 1.4 Customize Internal Jackson Deserialization

I am using spring.jackson.deserialization.FAIL_ON_UNKNOWN_PROPERTIES=true in the application.properties to make deserialization ... I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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594 views

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java - Replacing a text in Apache POI XWPF not working

I'm currently trying to work on the code mentioned on a previous post called Replacing a text in Apache POI ... table column value in Apache POI See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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364 views

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java - JDBC connection hangs with no response from SQL Server 2008 r2

When connecting to SQL Server 2008 (express locally, full server in production) this works fine for me when ... exception gets thrown Thanks, D See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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207 views

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java - Rotate Image Clockwise using LibGDX

How can we rotate a Image Clockwise using LibGDX? what i am looking is when a image is loaded,suppose a star, i ... how can i do that in libgdx? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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137 views

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java - Class Cast Exception when passing array of Serializables from one activity to another

I have an array containing serializable objects and am trying to use Intent's putExtra() and Bundle's ... ; //Class Cast Exception See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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java - org.openqa.selenium.SessionNotCreatedException: A new session could not be created. (Original error: Requested a new session but one was in progress)

I am using Appium 1.4.8 for iOS . I have build the code in simulator using xcode and successfully ... .RemoteTestNG.main(RemoteTestNG.java:175) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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237 views

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java - Confused about naming of JavaBean properties, with respect to getters and setters

I am making an application that uses Drools planner. The @ValueRangeFromSolutionProperty is supposed to refer to a ... return rowList; ... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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279 views

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java - Empty diamond shape with numbers

So I have been asked this question and I could only solve the top part of the code, I am stuck on the bottom part. ... [] args) { shape(4); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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173 views

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java - Use fork-and-join in JDK6

As I understand jdk7 has the support for fork-and-join, Can I use fork-and-join in JDK6 without upgraging to JDK7.0? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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107 views

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java - open eclipse Markeplace

I want to use eclipse marketplace for adding svn plugin but when i try to do it i have this exception : ... you any suggestions ? thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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125 views

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java - JPA Like Operator with Integer

Can someone tell me, why this is not working: criteria.add(cb.like((myentity.<Integer>get("integerid")).as( ... can use the like operator? BR See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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