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Do interfaces inherit from Object class in java
...hey don't. And there is no common "root" interface implicitly inherited by all interfaces either (as in the case with classes) for that matter.(*)
If no then how we are able to call the method of object class on interface instance
An interface implicitly declared one method for each public method ...
What is the difference between user and kernel modes in operating systems?
... CPU instruction and
reference any memory address. Kernel
mode is generally reserved for the
lowest-level, most trusted functions
of the operating system. Crashes in
kernel mode are catastrophic; they
will halt the entire PC.
User Mode
In User mode, the executing code has no abili...
What is pip's equivalent of `npm install package --save-dev`?
In nodejs, I can do npm install package --save-dev to save the installed package into the package.
8 Answers
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JPA: what is the proper pattern for iterating over large result sets?
...er way to iterate over a query against that table, such that I don't have all an in-memory List with millions of objects?
...
What does “use strict” do in JavaScript, and what is the reasoning behind it?
...e interesting parts:
Strict Mode is a new feature in ECMAScript 5 that allows you to place a program, or a function, in a "strict" operating context. This strict context prevents certain actions from being taken and throws more exceptions.
And:
Strict mode helps out in a couple ways:
...
Unicode characters in URLs
... in Firefox, the clipboard will hold the percent-encoded form (which is usually a good thing), but if you copy only a part of it, it will remain unencoded.
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Select unique or distinct values from a list in UNIX shell script
...n the following input:
class
jar
jar
jar
bin
bin
java
uniq will output all lines exactly once:
class
jar
bin
java
uniq -d will output all lines that appear more than once, and it will print them once:
jar
bin
uniq -u will output all lines that appear exactly once, and it will print them ...
Error: Could not find or load main class in intelliJ IDE
...ginner in Java and am trying to run my code using IntelliJ that I just installed as my IDE with JDK 1.7. The following piece of code keeps does not even compile and keeps giving me the error:
...
Can you set a border opacity in CSS?
...wsers do not understand the rgba format and will not display any border at all if this is the entire declaration. The solution is to provide two border declarations. The first with a fake opacity, and the second with the actual. If a browser is capable, it will use the second, if not, it will use th...
What is the default initialization of an array in Java?
... (whose decimal equivalent is 0).
When you create an array of something, all entries are also zeroed. So your array contains five zeros right after it is created by new.
Note (based on comments): The Java Virtual Machine is not required to zero out the underlying memory when allocating local va...