大约有 9,000 项符合查询结果（耗时：0.0170秒） [XML]
Comparing two java.util.Dates to see if they are in the same day
...
Joda-Time
As for adding a dependency, I'm afraid the java.util.Date & .Calendar really are so bad that the first thing I do to any new project is add the Joda-Time library. In Java 8 you can use the new java.time package, inspired by Joda-Time.
The core of Joda-Time is the...
When should a class be Comparable and/or Comparator?
...comparing itself with another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances.
Comparator
A comparator object is capable of comparing two different objects. The class is not comparing its instances, but some other class’s i...
How to delete a whole folder and content?
...the link is deleted and not the target of the link." from docs.oracle.com/javase/tutorial/essential/io/delete.html
– corbin
Apr 6 '15 at 17:58
3
...
Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
...his is because ArrayList resulting from Arrays.asList() is not of the type java.util.ArrayList . Arrays.asList() creates an ArrayList of type java.util.Arrays$ArrayList which does not extend java.util.ArrayList but only extends java.util.AbstractList
...
What is the difference between JavaConverters and JavaConversions in Scala?
In scala.collection , there are two very similar objects JavaConversions and JavaConverters .
4 Answers
...
What is the concept of erasure in generics in Java?
What is the concept of erasure in generics in Java?
8 Answers
8
...
Can we write our own iterator in Java?
...
Sure. An iterator is just an implementation of the java.util.Iterator interface. If you're using an existing iterable object (say, a LinkedList) from java.util, you'll need to either subclass it and override its iterator function so that you return your own, or provide a mean...
Convert Enumeration to a Set/List
Is there some one-liner bridge method to dump a given Enumeration to java.util.List or java.util.Set?
6 Answers
...
What is the maximum depth of the java call stack?
...at this is tail recursive and shouldn't ever overflow? Edit: Sorry. In Java it crashed at 8027; in Scala it got up to 8594755 before I got bored.
– arya
Feb 15 '15 at 2:47
...
AssertContains on strings in jUnit
...
assertThat(person.getName(), containsString("myName"));
// Error Message
java.lang.AssertionError:
Expected: a string containing "myName"
got: "some other name"
You can optional add an even more detail error message.
// Hamcrest assertion with custom error message
assertThat("my error mess...