Is it possible to write JAVA program without including any of the packages,such as "import java.io.*"; bcoz I instantly wrote a code without "import..." statement and runned the program on command Line & it worked. the code is: class Person { String name; int age; Person(String s,int a) { name = s; age = a; } accept() { System.out.println(name+"Hi!!!!!"); System.out.println(age); } } class Demo { public static void main(Strings args[])throws IOException { String name = args[0]; int age = Integer.parseInt(args[1]); Person p = new Person(name,age); p.accept(); } }
3 43341) There are 10 different threads in runnable state. Each having priority 1 to 10. How does the CPU schedules or executes these threads?
RBS,
2 60452) Suppose there are 5 directories having lot of files (say txt files) in each directory. 2 things :- 2.1) You want to search for filenames which have a particular pattern. 2.2) Out of these filtered files you want to search for a particular keyword or a search string. How can you achieve this?
18693) Suppose you are a very rich person, having 50 rooms and you have lost the key for one of the room's. How effectively you can find this key? (Qs2 and Qs3 are related)
RBS,
3 7887Suppose there is a System A which gives some output. This output is used as input by system B. The rate at which System A produces is faster than the rate at which system B consumes it. How can you improve this?
RBS,
1 5134Suppose there is an Online shopping cart application having different objects like Cart, SelectionItem, Billing, COnfiguration, Authentication, Authorization, PersonalDetails etc. Out of this which one can be made a singleton pattern and why?
RBS,
2 98747) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
4 7692
Explain methods specific to list interface?
Explain about instanceof operator in java?
Explain java coding standards for classes or java coding conventions for classes?
Can an interface implement another interface?
Explain about automatic type conversion in java?
What do you understand by the term string pool?
What is skeleton and stub?
What is an example of character?
If an object is garbage collected, can it become reachable again?
Is null an object in java?
Can I overload to string method
Which collection is sorted in java?
Which number is denoted by leading 0x or 0x in java?
What is data structure in java?
What is the main purpose of serialization in java?
