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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 51911) 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 70132) 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?
22463) 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 8770Suppose 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 5684Suppose 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 106157) 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 9129
What is the major advantage of external iteration over internal iteration?
Why do we use predicate in java?
What is method with example?
Are floats faster than doubles?
Can a abstract class be defined without any abstract methods?
What is the purpose of tostring() method in java?
What is a default constraint?
Which class is the superclass for all the classes?
What does opcode mean?
Difference between Preemptive scheduling vs. Time slicing?
Define jit compiler?
What modifiers are allowed for methods in an interface?
Why is boolean important?
Explain access specifiers?
What is assembly condition codes?
