State the main difference between c++ and java?
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What are the OOAD concepts in java explain with examples?
Difference between ?System.out.println? and ?System.error.println??
What is meant by data hiding in java?
What is downcasting?
Can we sort array in java?
what is Vector class?
Can arraylist hold different types java?
Can singleton class be cloned?
Why would you desing a J2EE application so user data is entered by way of a JSP page and managed by an underlying Java Beans class?
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 are different exception types exceptions available in java ?
Suppose i have two threads t1 and t2 are running.How the main thread will know that the two threads t1,t2 execution has completed?