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How can I read input from the console using the Scanner class in Java?
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A simple example to illustrate how java.util.Scanner works would be reading a single integer from System.in. It's really quite simple.
Scanner sc = new Scanner(System.in);
int i = sc.nextInt();
To retrieve a username I would probably use sc.nextLine().
Sys...
How do I compare strings in Java?
...ontent of the String with the content of any CharSequence (available since Java 1.5). Saves you from having to turn your StringBuffer, etc into a String before doing the equality comparison, but leaves the null checking to you.
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Java equivalent of C#'s verbatim strings with @
Quick question. Is there an equivalent of @ as applied to strings in Java:
4 Answers
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Clone() vs Copy constructor- which is recommended in java [duplicate]
clone method vs copy constructor in java. which one is correct solution. where to use each case?
6 Answers
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What does java:comp/env/ do?
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Quoting https://web.archive.org/web/20140227201242/http://v1.dione.zcu.cz/java/docs/jndi-1.2/tutorial/beyond/misc/policy.html
At the root context of the namespace
is a binding with the name "comp",
which is bound to a subtree reserved
for component-related bindings. The
name "comp" is s...
Sort a single String in Java
Is there a native way to sort a String by its contents in java? E.g.
10 Answers
10
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java.lang.UnsupportedClassVersionError: Bad version number in .class file?
...ly have a 1.5 JRE on the system, because Eclipse has its own compiler (not javac), and only needs a 1.5 JRE to compile 1.6 classes.
It may be weird, and a setting needs to be unchecked to allow this, but I just managed to do it.
For the project in question, check the Project Properties (usually Al...
eclipse won't start - no java virtual machine was found
...How_do_I_run_Eclipse%3F#Find_the_JVM
Note : Eclipse DOES NOT consult the JAVA_HOME environment variable.
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What does .class mean in Java?
What does .class mean in Java? For example, if I created a class called Print . What does Print.class return?
7 Answer...
Find Java classes implementing an interface [duplicate]
... time ago, I came across a piece of code, that used some piece of standard Java functionality to locate the classes that implemented a given interface. I know the functions were hidden in some non-logical place, but they could be used for other classes as the package name implied. Back then I did no...