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What is the difference between jvm and jre? What is an interface?
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What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } } 10. What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } }
What are teh sub-classes of a component class?
Differentiate between stringbuffer and stringbuilder in java.
When a thread is executing a synchronized method , then is it possible for the same thread to access other synchronized methods of an object ?
What is a methodologist?
Write an algorithm program in java for the following question.. In a VLSI design techniques,they used rectangles to design circuits. EVery rectangle is to be placed according to x,y coordinates. Check whether or not two rectangles overlap each other. Here overlapping of rectangles is acceptable, if 1) one rectangle intersect with other. 2) one rectangle fully covers other. The time of algorithm should not exceed o(n logn).
what is the default value of a variable char?(If not assigned)
What is difference between filereader and bufferedreader?
Is it safe to install java on my computer?
How is garbage collection controlled?
What is the USE of Null interfaces ??...if thers nothing inside these interfaces how are they used and WHy are they used ???? No 1 has given a proper description yet
What is the use of singleton class?
Core Java 
