What is difference between add() and addelement() in vector?
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What is a layout manager?
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); } }
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In how many ways we can the thread? in java
Can we pass null as argument in java?
How can we make a class virtual?
How many JVMs can run on a single machine and what is the meaning of Just-In-Time (JIT) compiler?
What is Session reduplication and how its done?
long d =10;int i =0;i=d; /// is this possible? If d is very long number (10 digits or some thing) then?
When should I use singleton?
How to disable caching on back button of the browser?
In method overloading ,if i change the return type to Long instead of INT,is the program execute