Menu
If I have two classes with same name say Matcher.java in two different jar in my classpath which one will be picked up by JVM , is there anyway I can suggest JVM to pick a specific one ?
385
In fact, you can't create two public classes in a single file, Only one class should be public and it should be the name of the class. If you try to create two public classes in same file the compiler generates a compile time error.
For convenience, Java allows you to write more than one method in the same class definition with the same name. For example, you can have two methods in ShoppingCart class named computeCost. Having two or more methods named the same in the same class is called overloading.
Yes, you can import a class twice in Java, it doesn't create any issues but, irrespective of the number of times you import, JVM loads the class only once.
Yes there is. You would need to implement your own Classloader and play some games to be able to access both during runtime.
Quoting Oracle:
Specification order
The order in which you specify multiple class path entries is important. The Java interpreter will look for classes in the directories in the order they appear in the class path variable. In the example above, the Java interpreter will first look for a needed class in the directory C:\java\MyClasses. Only if it doesn't find a class with the proper name in that directory will the interpreter look in the C:\java\OtherClasses directory.
The example mentioned:
C:> java -classpath C:\java\MyClasses;C:\java\OtherClasses ...
So yes, it will load the one appears in the classpath that specified first.
187
The first one found in the classpath. ie, the first jar containing your class will be used.
You can't control it from within the JVM, but you can control the classpath - make sure the one you want is listed/found first in the classpath.
34
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
