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public class Test { public static void main(String ar[]) { Integer a = 10; Integer b =10; Integer c = 145; Integer d = 145; System.out.println(a==b); System.out.println(c==d); } }
7 13191solve this is my problem byte a=40,byte b=50 both add value is 90 this is with in range of byte... byte range is -128to 127.... why this pgm gives error like type mismatch.... package javapgms; public class byte1 { public static void main(String args[]) { byte a=40,b=50; byte c=a+b; System.out.println(c); } } note : dont use int k... a,b,c are in byte range... mind it..
2 6292Why Static variable required in java?For ex,class A { static int a; int b; } Why static is required?
5 8904In collection sorting comparable and comparator interface will be used..but why this two interfaces required..two will work same purpose so why there are two interfaces instead of one?when to use comparator and when to use comparable?
1 4905
Explain differences between checked and unchecked exceptions in java?
Can we execute a program without main() method?
What are different types of control structures?
Why bytecode is called bytecode?
What is the use of parseint in java?
Can a final variable be initialized in constructor?
Should database connections be singleton?
Is array a class in java?
Explain java coding standards for interfaces?
How can you make sure that your singleton class will always return single instance in multi-threaded environment?
Which category the java thread do fall in?
Explain the overview of UDP messaging.
What does sprintf return?
Can we extend a class with private constructor?
How to make a write-only class in java?
