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How do I programmatically determine operating system in Java?
I would like to determine the operating system of the host that my Java program is running programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability?
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The import org.junit cannot be resolved
I need to solve a java problem for an interview, and they have sent me the test class. It starts with
13 Answers
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How to check certificate name and alias in keystore files?
...f the alias is not found, it will display an exception:
keytool error: java.lang.Exception: Alias does not exist
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Does Java have a path joining method? [duplicate]
combine paths in java
4 Answers
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What is a NullPointerException, and how do I fix it?
What are Null Pointer Exceptions ( java.lang.NullPointerException ) and what causes them?
12 Answers
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Convert list to array in Java [duplicate]
How can I convert a List to an Array in Java?
11 Answers
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How to send SMS in Java
What are the possible ways to send and receive sms from Java application?
16 Answers
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When do you use Java's @Override annotation and why?
What are the best practices for using Java's @Override annotation and why?
27 Answers
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How to create custom exceptions in Java? [closed]
How do we create custom exceptions in Java?
3 Answers
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Calculate size of Object in Java [duplicate]
...zes of data structures) and it seems like there is no method to do this in Java. Supposedly, C/C++ has sizeOf() method, but this is nonexistant in Java. I tried recording the free memory in the JVM with Runtime.getRuntime().freeMemory() before and after creating the object and then recording the...