大约有 20,000 项符合查询结果（耗时：0.0461秒） [XML]
How to limit setAccessible to only “legitimate” uses?
The more I learned about the power of java.lang.reflect.AccessibleObject.setAccessible , the more astonished I am at what it can do. This is adapted from my answer to the question ( Using reflection to change static final File.separatorChar for unit testing ).
...
java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail
I am using Java Mail API to read and parse emails. It is working fine with Servlet code.
7 Answers
...
How do I create a unique ID in Java? [duplicate]
I'm looking for the best way to create a unique ID as a String in Java.
11 Answers
11
...
Keystore type: which one to use?
By looking at the file java.security of my JRE , I see that the keystore type to use by default is set to JKS . Here , there is a list of the keystore types that can be used.
...
How do I convert a byte array to Base64 in Java?
...
Java 8+
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = Base64.getDecoder().decode(encoded);
println(new S...
How can I determine whether a Java class is abstract by reflection
...vy startup. I can't find anything obviously like isAbstract() in the Class.java docs.
3 Answers
...
What does value & 0xff do in Java?
I have the following Java code:
4 Answers
4
...
“new” keyword in Scala
...w keyword when creating objects in Scala? Is it when we try to instantiate Java objects only?
3 Answers
...
Create a custom event in Java
I want to do something like this in Java but I don't know the way:
4 Answers
4
...
Java8: Why is it forbidden to define a default method for a method from java.lang.Object
Default methods are a nice new tool in our Java toolbox. However, I tried to write an interface that defines a default version of the toString method. Java tells me that this is forbidden, since methods declared in java.lang.Object may not be default ed. Why is this the case?
...