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Immutable array in Java
Is there an immutable alternative to the primitive arrays in Java? Making a primitive array final doesn't actually prevent one from doing something like
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How to handle invalid SSL certificates with Apache HttpClient? [duplicate]
...st store that includes your cert
Add the cert for that site to the default java trust store.
Here is a sample program that creates a (mostly worthless) SSL Context that accepts any cert:
import java.net.URL;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import...
StringBuilder vs String concatenation in toString() in Java
...e spec is: To increase the performance of repeated string concatenation, a Java compiler _may_ use the StringBuffer class or a similar technique to reduce the number of intermediate String objects that are created by evaluation of an expression. The key word there being may. Given that this is offi...
Java Date vs Calendar
... FYI, the terribly troublesome old date-time classes such as java.util.Date, java.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle.
– Basil Bourque
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Why is Multiple Inheritance not allowed in Java or C#?
I know that multiple inheritance is not allowed in Java and C#. Many books just say, multiple inheritance is not allowed. But it can be implemented by using interfaces. Nothing is discussed about why it is not allowed. Can anybody tell me precisely why it is not allowed?
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How can I parse a YAML file from a Linux shell script?
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98
I've written shyaml in python for YAML query needs from the shell command line.
Overview:
$ p...
How to validate an OAuth 2.0 access token for a resource server?
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98
Update Nov. 2015: As per Hans Z. below - this is now indeed defined as part of RFC 7662.
Origi...
How do I make a delay in Java?
I am trying to do something in Java and I need something to wait / delay for an amount of seconds in a while loop.
8 Answer...
Calculating the difference between two Java date instances
I'm using Java's java.util.Date class in Scala and want to compare a Date object and the current time. I know I can calculate the delta by using getTime():
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How to create a project from existing source in Eclipse and then find it?
I have created several .java files. All of them are located in one directory. I used a text editor to write these files. Now I want to switch to Eclipse. How can I do it? I have tried many ways. None of them works.
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