What do you mean by light weight and heavy weight components?
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How can final class be used?
What is a void method?
1).Is Object class abstract or not? 2).Is main method(public static void main(String args[])low priority thread or high priority thread?
How do you control extraneous variables?
How are variables stored?
Can u write constructor in abstract.If yes den when it will be invoked.
What is aggregation and composition ?
Is java a super set of javascript?
Can final class have constructor?
What is a null check?
What is lastindexof in java?
What is the old name of java?