大约有 7,540 项符合查询结果（耗时：0.0214秒） [XML]
accepting HTTPS connections with self-signed certificates
..., etc., listed on the set of Android Trusted Certificates, I keep getting javax.net.ssl.SSLException: Not trusted server certificate .
...
How does one create an InputStream from a String? [duplicate]
I'm not used to working with streams in Java - how do I create an InputStream from a String ?
6 Answers
...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...
This comes up in Java 5 and later if you're using collections without type specifiers (e.g., Arraylist() instead of ArrayList<String>()). It means that the compiler can't check that you're using the collection in a type-safe way, using...
Immutability of Strings in Java
...
+1 Here's an idea, immutable objects in java are like copy-by-value, you can have 2 references to a String, but you should consider them 2 separate Strings since it's immutable, and working with one of them won't affect the other
– Khaled.K
...
Is there more to an interface than having the correct methods
...
There is nothing in this answer that is exclusive to Java interfaces. The same applies equaly well to abstract classes, or even concrete ones. I would expect a good answer to mention the ability to implement multiple interfaces, and when/why that would be useful.
...
When should we call System.exit in Java
In Java, What is the difference with or without System.exit(0) in following code?
10 Answers
...
What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
...kipedia demonstrating how it works:
A traditional if-else construct in C, Java and JavaScript is written:
if (a > b) {
result = x;
} else {
result = y;
}
This can be rewritten as the following statement:
result = a > b ? x : y;
Basically it takes the form:
boolean statement ? true ...
Convert file: Uri to File in Android
...ore. This should work:
new File(new URI(androidURI.toString()));
URI is java.net.URI.
share
|
improve this answer
|
follow
|
...
How do I format a long integer as a string without separator in Java?
...
It's not undocumented. See download.oracle.com/javase/6/docs/api/java/lang/….
– Rob H
Aug 28 '10 at 0:53
3
...
In Java 8 how do I transform a Map to another Map using a lambda?
I've just started looking at Java 8 and to try out lambdas I thought I'd try to rewrite a very simple thing I wrote recently. I need to turn a Map of String to Column into another Map of String to Column where the Column in the new Map is a defensive copy of the Column in the first Map. Column has...