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Differences between “java -cp” and “java -jar”?
What is the difference between running a Java application with java -cp CLASSPATH and java -jar JAR_FILE_PATH ? Is one of them preferred to the other for running a Java application? I mean which one of these ways is more expensive for JVM (according to their machine resources usage)?
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Cast Double to Integer in Java
Any way to cast java.lang.Double to java.lang.Integer ?
17 Answers
17
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java SSL and cert keystore
How does my java program know where my keystore containing the certificate is? Or alternatively how do I tell my java program where to look for the keystore?
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How to invoke a Linux shell command from Java
I am trying to execute some Linux commands from Java using redirection (>&) and pipes (|). How can Java invoke csh or bash commands?
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Why doesn't Java offer operator overloading?
Coming from C++ to Java, the obvious unanswered question is why didn't Java include operator overloading?
16 Answers
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Java; String replace (using regular expressions)?
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String input = "hello I'm a java dev" +
"no job experience needed" +
"senior software engineer" +
"java job available for senior software engineer";
String fixedInput = input.replaceAll("(java|job|senior)", "<b>$1</b>");
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Java RegEx meta character (.) and ordinary dot?
In Java RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...)
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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...imitations of the JVM.
This arises out of the fact that not everything in Java is an object. In addition to objects, there are primitives. All objects in Java are descendant from java.lang.Object, but primitives are set apart and, presently*, not extensible by a programmer. Note also that primitive...
Should I use Java date and time classes or go with a 3rd party library like Joda Time?
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EDIT: Now that Java 8 has been released, if you can use that, do so! java.time is even cleaner than Joda Time, in my view. However, if you're stuck pre-Java-8, read on...
Max asked for the pros and cons of using Joda...
Pros:
It works, ...
What's the standard way to work with dates and times in Scala? Should I use Java types or there are
...hat's the standard way to work with dates and times in Scala? Should I use Java types such as java.util.Date or there are native Scala alternatives?
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