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Mod in Java produces negative numbers [duplicate]
When I calculate int i = -1 % 2 I get -1 in Java. In Python, I get 1 as the result of -1 % 2 .
What do I have to do to get the same behavior in Java with the modulo function?
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java.net.MalformedURLException: no protocol
I am getting Java exception like:
2 Answers
2
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Can we have multiline comments in a Java properties file?
In a Java .properties file we can do single line comments with # .
11 Answers
11
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What does the keyword “transient” mean in Java? [duplicate]
...e object
is recreated from those bytes. Member
variables marked by the java transient
keyword are not transferred, they are
lost intentionally.
Example from there, slightly modified (thanks @pgras):
public class Foo implements Serializable
{
private String saveMe;
private transient...
How to set IntelliJ IDEA Project SDK
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For a new project select the home directory of the jdk
eg C:\Java\jdk1.7.0_99
or C:\Program Files\Java\jdk1.7.0_99
For an existing project.
1) You need to have a jdk installed on the system.
for instance in
C:\Java\jdk1.7.0_99
2) go to project structure under File menu ctrl+alt+s...
Method Overloading for null argument
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Java will always try to use the most specific applicable version of a method that's available (see JLS §15.12.2).
Object, char[] and Integer can all take null as a valid value. Therefore all 3 version are applicable, so Jav...
How to delete a folder with files using Java
I want to create and delete a directory using Java, but it isn't working.
25 Answers
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How to check if BigDecimal variable == 0 in java?
I have the following code in Java;
10 Answers
10
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BigDecimal - to use new or valueOf
... but it's a lot less intuitive.
There's a nice explanation of this in the JavaDoc:
The results of this constructor can be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly equal to 0.1 (an unscaled value of 1, with a scale of...
implements Closeable or implements AutoCloseable
I'm in the process of learning Java and I cannot find any good explanation on the implements Closeable and the implements AutoCloseable interfaces.
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