What are the advantages of arraylist over arrays?
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public class Base { public void myMethod(int a,intb) {} } // Uses myMethod and then hides it. public class DerivedOne extends Base { private void myMethod(int a,int b); } will this compile or not .yes or no. why
What is the difference between char and char *?
Which is the best way to use for String concatenation in Java?
what is purpose of collections.unmodified() method..?
What are functions in java?
What happens if an exception is throws from an object's constructor?
I have one Shopping cart application, i that i have selected some items, while clicking submit button by mistake i have clicked twice or trice, that time items are selected twice or trice. Actually i want only one copy of items but its selected twice or trice. So how can we avoid this problem?
what is servlet enginee?
Can a source file contain more than one class declaration?
Why do we need wrapper classes?
We are seeing so many videos/audios as many web sited. But question is these videos or audios are stored in Databases ( Oracle, Mysql, Sybase,... ) or stored any file directory from there they will give the link for that? Pls explain and give sample code to achieve this one? Thanks, Seenu.
Why do we need singleton?