大约有 7,486 项符合查询结果（耗时：0.0216秒） [XML]
Method Overloading for null argument
...
Java will always try to use the most specific applicable version of a method that's available (see JLS §15.12.2).
Object, char[] and Integer can all take null as a valid value. Therefore all 3 version are applicable, so Jav...
How to delete a folder with files using Java
I want to create and delete a directory using Java, but it isn't working.
25 Answers
2...
Case objects vs Enumerations in Scala
...
Another point for case objects is if you care about java interoperability. The Enumeration would return the values as Enumeration.Value, thus 1) requiring scala-library, 2) losing the actual type information.
– juanmirocks
Oct 24 '12 at 9...
How to check if BigDecimal variable == 0 in java?
I have the following code in Java;
10 Answers
10
...
How to convert Set to String[]?
...
From Java 7 we can use String[] GPXFILES1 = myset.toArray(new String[0]) and that's recommended. Update the answer. "Since late updates of OpenJDK 6 this call was intrinsified, making the performance of the empty array version th...
implements Closeable or implements AutoCloseable
I'm in the process of learning Java and I cannot find any good explanation on the implements Closeable and the implements AutoCloseable interfaces.
...
What is the difference between Spring, Struts, Hibernate, JavaServer Faces, Tapestry?
....
Hibernate is an object-relational mapping tool, a persistence framework.
JavaServer Faces is component-based presentation framework.
JavaServer Pages is a view technology used by all mentioned presentation framework for the view.
Tapestry is another component-based presentation framework.
So, to...
Java reflection - impact of setAccessible(true)
...lue of true indicates that the reflected object should suppress checks for Java language access control when it is used
And a runnable example:
public class FieldAccessible {
public static class MyClass {
private String theField;
}
public static void main(String[] args) throw...
In Java, how do I call a base class's method from the overriding method in a derived class?
I have two Java classes: B, which extends another class A, as follows :
12 Answers
12
...
java.net.MalformedURLException: no protocol
I am getting Java exception like:
2 Answers
2
...