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What's wrong with Java Date & Time API? [closed]
Very often I come across negative feedback on Java Date and other date-time-related classes. Being a .NET developer, I cannot fully (without having used them) understand, what's actually wrong with them.
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How do I set environment variables from Java?
How do I set environment variables from Java? I see that I can do this for subprocesses using ProcessBuilder . I have several subprocesses to start, though, so I'd rather modify the current process's environment and let the subprocesses inherit it.
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java.lang.IllegalStateException: The specified child already has a parent
I am using fragments, when I instantiate a fragment the first time it it. but the second time I got this exception. I couldn't find the line where I got the error?
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How do I make my string comparison case insensitive?
I created a Java program to compare two strings:
12 Answers
12
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Java executors: how to be notified, without blocking, when a task completes?
... submit these to ExecutorService. Or, see below for a mechanism built into Java 8.
class CallbackTask implements Runnable {
private final Runnable task;
private final Callback callback;
CallbackTask(Runnable task, Callback callback) {
this.task = task;
this.callback = callback;
}...
How can I pad an integer with zeros on the left?
How do you left pad an int with zeros when converting to a String in java?
16 Answers
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Does a method's signature in Java include its return type?
Does the method signature in a Java class/interface include its return type?
14 Answers
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What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
...add that for multidimensional arrays that might have an arbitrary shape in Java, the nested loops should check for the relevant subarray length: for (int nestedIndex = 0; nestedIndex < array[outerIndex].length; nestedIndex++) { ... array[outerIndex][nestedIndex] ... }.
– And...
How do you crash a JVM?
...up? are you sure? The documentation says "Terminates the currently running Java virtual machine by initiating its shutdown sequence ... all registered shutdown hooks, if any, are started ... all uninvoked finalizers are run" - isn't that the proper cleanup?
– user85421
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How to change fontFamily of TextView in Android
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Here is the parser (based off FontListParser):
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.x...