Recent questions tagged Java

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java - Weblogic Guava issue when deploying application

I'm trying to deploy an application to a weblogic server, and I get the following error. I ... /common/util/concurrent/ListeningExecutorService; 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 - updateLong not allowed in ResultSet

I am trying to add a serial number in my table. Here is my method: public void reArrangeTrID(){ String parti ... . I am using derby database. 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 change the dimension of a component in a JFrame

Suppose I have a JPanel in a JFrame. When I invoke a method that changes the preferred size of that ... ; setPreferredSize( dimension ); } 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 - Spring security redirects to page with status code 999

After successful login spring redirects to /error page with the following content { "timestamp" : 1586002411175, " ... any not found resources. 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 - jstl <c:if> tags not working in jsp file, getting error in tomcat 7

I have problem using jstl tag <c:if> in jsp file. Basically I should make this as 2 questions although they ... idea how to upgrade jsp version. 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 - Blueprint maven plugin RuntimeException

I don't have any blueprint annotations in my code, but when I try to build my bundle using maven I get [ERROR] ... > </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId>...

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

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java - When to use catch and when to use throws in the exception handling

The question is not about exception handling syntax, but it is all about which is the right place to ... I effectively handle the 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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java - Why implicit type inference only works in an assignment?

I know that using generic in an assignment, a method can implicitly know the type of the return type by looking at ... ); Looks like a 'dejavu' 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 get byte array from iText PDFReader

How to get byte array from Itext PDFReader. float width = 8.5f * 72; float height = 11f * 72; float ... way to get byte array from PDFReader. See Question&Answers more detail:os...

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

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454 views

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java - Google app engine sessions now supported?

I thought google app engine did not support sessions (last time I checked was a few months ago). Now I was searching ... ------ It works, 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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365 views

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java - How connect Mongo DB with Android application

I've generated Android project in Eclipse and everything work. I've added a few buttons etc with events. Now, I' ... (724): ... 14 more See Question&Answers more detail:os...

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

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542 views

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java - Spring - SpEL evaluates entity argument as null reference in @PreAuthorize("hasPermission")

I've got problem that SpEL is evaluating entity argument as null reference in the second method of this ... delete(createdEntity); } } 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 - JPL/SWI Prolog configuration failure

I'm configuring the JPL right now, and wanna work with swi-prolog using java. I downloaded the newest stable ... -- have I missed anything? See Question&Answers more detail:os...

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

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396 views

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java - Cannot resolve corresponding jni function opencv Android

this is where i get error.I loaded correctly opencv library but i get this error.If i go in the ... .ZygoteInit.main(ZygoteInit.java:726) See Question&Answers more detail:os...

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

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405 views

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java - How to close current browser tab?

How do I close the current browser tab? The following aren't working. JavaScript.getCurrent().execute("window.close(); ... ); or window.close(); See Question&Answers more detail:os...

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

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567 views

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java - Display squares of asterisks, filled and hollow, side by side

I'm currently trying to display a filled asterisk square and a hollow asterisk : ********** ********** ***** ... } } System.out.println(); } } } See Question&Answers more detail:os...

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

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389 views

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java - Can't Run Activator Template projects Activator UI Failed to load SBT configuration

I am new to Play Framework and Scala and this amazing tool activator. I am unable to run template projects ... ab2fdb8f4767 sbt.version=0.13.2 See Question&Answers more detail:os...

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

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670 views

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java - axis2 client NTLM authentication

I have an axis2 (v1.5.3) client that needs to do Kerberos/NTLM authentication with IIS. How can I do this? ... ")); stub.Credentials = myCache; See Question&Answers more detail:os...

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

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780 views

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java - Encoding cp-1252 as utf-8?

I am trying to write a Java app that will run on a linux server but that will process files generated on legacy ... cp-1252 it is generated as? See Question&Answers more detail:os...

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

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417 views

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java - JavaAgent in Lotus Notes 6.5 using axis api gives Exception "No implementation defined for org.apache.commons.logging.LogFactory"

I needed to write a JavaAgent in a Lotus Notes 6.5 DB to access a web service. I used ... /webservices/tempconvert.asmx?op=FahrenheitToCelsius See Question&Answers more detail:os...

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

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502 views

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java - Redirect to a different host in Spring Boot (non-www to www URL)

I have configured my project with a self signed certificate and have configured to redirect insecure http to https. I ... </rule> </urlrewrite> See Question&Answers more detail:os...

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

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331 views

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java - List of String Arrays overwriting itself

First ever question here, complete newbie so try to take it easy on me. I'm trying to figure out what's ... correctly and still no joy. HELP! See Question&Answers more detail:os...

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

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409 views

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java - change a config.properties file in a jar / war file in runtime and hotdeploy the changes?

change a config.properties file in a jar / war file in runtime and hotdeploy the changes ? my requirement is ... i can jumpstart on this. 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 - Changing Scenes in JavaFX NullPointerException

I'm wanting to change to a scene in another class but I'm having great difficulty. Now the I can move to the ... .getChildren().add(but); } } See Question&Answers more detail:os...

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

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417 views

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java - Usage of X-AppEngine-Estimated-CPM-US-Dollars in AppEngine

How to make use of X-AppEngine-Estimated-CPM-US-Dollars header in AppEngine. i read some docs, we can make use of ... us. Thanks in Advance! :) See Question&Answers more detail:os...

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

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612 views

1 answer

java - How to Export JPanel with scrollable into pdf file

i have design a jpanel with so many swing components with scrollable capability. i want to export whole Jpanle into pdf ... } plz help me . tnx See Question&Answers more detail:os...

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

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383 views

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java - How to check if two streams are disjoint?

I would like to compare to streams, and check if they have 1 or more elements in common (finding 1 is ... least 1 element in common } See Question&Answers more detail:os...

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

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631 views

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java - TextViews text change in a for loop

I want to change textViews' texts inside for loop in Android Studio, something like that: for i=0 -------- ... "16dp" android:textSize="13dp" /> See Question&Answers more detail:os...

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

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