What is the static import?
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import java.io.*; class Demo { public static void main(String args[]) { File f=new File("1234.msg"); String arr[]=f.list(); System.out.println(arr.length); } }
What is the difference between serialization and deserialization?
when to use ArrayList and when to use HashMap in webApplication.
What is the concatenation operator in java?
How many times finalize method will be invoked? Who invokes finalize() method in java?
What is java argument list?
Why are constructors used?
Differences between C and Java?
What is thread synchronization in java?
What are the advantages of user defined functions?
What is string immutability?
How do you implement singleton class?