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Bytes of a string in Java
In Java, if I have a String x , how can I calculate the number of bytes in that string?
8 Answers
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How to download and save a file from Internet using Java?
... line-by-line, but is there a way to just download and save the file using Java?
21 Answers
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Maven compile with multiple src directories
Is there a way to compile multiple java source directories in a single maven project?
10 Answers
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Keystore type: which one to use?
By looking at the file java.security of my JRE , I see that the keystore type to use by default is set to JKS . Here , there is a list of the keystore types that can be used.
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How do I invoke a Java method when given the method name as a string?
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Coding from the hip, it would be something like:
java.lang.reflect.Method method;
try {
method = obj.getClass().getMethod(methodName, param1.class, param2.class, ..);
} catch (SecurityException e) { ... }
catch (NoSuchMethodException e) { ... }
The parameters identify...
What is an efficient way to implement a singleton pattern in Java? [closed]
What is an efficient way to implement a singleton pattern in Java?
29 Answers
29
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Read properties file outside JAR file
... file in the same directory where the JAR file is. Is there anyway to tell Java to pick up the properties file from that directory ?
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How to convert a java.util.List to a Scala list
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import scala.collection.JavaConversions._
will do implicit conversion for you; e.g.:
var list = new java.util.ArrayList[Int](1,2,3)
list.foreach{println}
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How do I resolve ClassNotFoundException?
I am trying to run a Java application, but getting this error:
21 Answers
21
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What's the syntax for mod in java
... >= 0 but not n % m. n % m is in the range > -m and < m. Although Java has a remainder operator for int and long types, it has no modulus function or operator. I.e., -12 % 10 = -2 whereas -12 mod 10 = 8. If % operator returns a negative value for n % m, then (n % m) + m will give you n mod ...