write a program that list all permutations of ABCDEF in
which A appears before B?
What is java util function?
How do you sort arrays in java?
What are different exception types exceptions available in java ?
What is the use of default method in interface in java? Explain
How are Observer and Observable used?
What is default specifier ??? Use of default specifier ???
What are the two ways to create a thread?
What are the parts of methodology?
What are java methods?
what is request processor?
What is the difference between superclass and subclass?
What is use of functional interface in java 8? Explain