Recent questions tagged java

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java - Parsing ISO_INSTANT and similar Date Time Strings

I created this wonderful static method yesterday, and it worked just fine - yesterday However, today it gives me this ... (f.parse(time)); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JMeter 5.4 When open testplan Unexpected error

I create a very simple testplan: I save the testplan as MySimpleTestplan.jmx Close JMeter Start JMeter again as: ... I'm really stuck here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - javafx.scene.control.Dialog<R> won't close on pressing "x"

If I just create an empty class extending from javafx.scene.control.Dialog<R>, it won't close when I'm ... pressing ESC. Is this possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Access a resource name programmatically

I have many string arrays in my resource files, and I want to access them programmatically depending on user ... with hundreds of cases? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Connection to LocalHost/10.0.2.2 from Android Emulator timed out

Although this question has been asked multiple times in StackOverflow and I went through many of them, still I ... build. Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - No Such Element Exception?

So here is my code: public static void getArmor(String treasure) throws FileNotFoundException{ Random rand=new ... /hw/hw06/large_data.zip See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What are *.snap files in eclipse?

I have so many projects in workspace. for every one or two weeks i have to search for *.snap file delete ... of java projects in my workspace? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Cannot stop ant from generating compiler Sun proprietary API warnings

I call javac from my ant script like this: <javac srcdir="src" destdir="build/classes" source="1.6" target=" ... . How to I remove the warnings? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Automatically redirect from one JSP page to Another

Is it possible to redirect a user automatically to a second jsp page as soon as the home page loads? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to add 7 days to current date while not going over available days of a month?

I am trying to get todays day of the month. And what i want to do is add seven days to the number and the ... in my main activity every 7 days. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - SimpleDateFormat gives API Error

Whenever I use my SimpleDateFormat in android it keep giving me the error call requires API level 24. Which doesn't make ... (); } return 0; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Insert element to ArrayList with ascending order and no duplicate elements

I have a homework assignment where I need to insert or add new elemment into ArrayList<Interger> with follow ... need to use only ArrayList See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JDBC Derby driver not found

I've followed the JDBC tutorial at: http://docs.oracle.com/javase/tutorial/jdbc/basics/gettingstarted.html, and ... sql.CloseConnection(); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Robolectric shadow not working

I'm trying to create a test with Robolectric. My goal is to be able to replace the functionality of one class ( ... used. What am I doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why can an identifier not start with a number?

Why in java (I dont know any other programming languages) can an identifier not start with a number and why are the ... e#; int .f; int 7g; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Setting the environment for ProcessBuilder

I have a strange problem setting the Linux environment from Java (1.6); specifically the "PATH" variable. In a ... something else I'm missing? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Which has more priority: || or && or ==

I have this expression: y[i] = ( z[i] == a && b || c ) Which of these elements (&&, ||, ... please show the order of operations with brackets? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Package com.sun.org.apache.xml.internal.security.utils.Base64 does not exist

I am using NetBeans 7.0.1 and JDK 1.6 Update 24 and when importing the package com.sun.org.apache.xml ... this very much appreciated! Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Convert char* to jstring in JNI, when char* is passed using va_arg

Is it necessary to convert char* to jbyteArray, then call java String's contructor to generate a jstring? How ... return_array); return 0; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Dates before January 1st, 1970

The getTime() fetches the time in millis for a certain Date. Can this be used reliably for dates say in the ... past that this could be used? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I set the classpath that rmiregistry uses?

I'm trying to make a Java RMI client/server app. I'm running into problems starting up the server side of my ... around it. See my answer below. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - List of Lists of Lists

I'm new to Java and I need to make a list of lists of lists. I could do it in python because an ... way to implement this behavior in java? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why calling method with generic return on a generic class is considered unsafe by javac?

Consider the following code: public class Main { public static class NormalClass { public Class<Integer> method() ... not taking into account? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - RabbitMQ - Get total count of messages enqueued

I have a Java client which monitors RabbitMQ queue. I am able to get the count of messages currently in queue ... these data in Java client? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android test code coverage, Eclipse

Is there a way to run unit tests for Android from Eclipse in a way that will instrument the code and measure ... cases and see if that helped. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Using Java8 Stream to find the highest values from map

I wrote following method to find the keys mapped to the highest values and trying to convert to java Streams. Can ... ; } } return listMax; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - log4j : current time in milliseconds

In log4j.properties I can set PatternLayout e.g. ("[%p] %c - %m - %d %n") Is there any symbol ... ) which returns current time in milliseconds? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - ArrayList<> vs ArrayList<Integer>

What is the difference in the two following declarations of an ArrayList? ArrayList<Integer> nunbers = new ... preferred over the other? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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