Can we have multiple classes in single file ?
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7) 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?
What is the program development process?
What is the default access specifier for variables and methods of a class?
Write a program in java to calculate the difference between the sum of the odd level and even level nodes of a binary tree.
Why is method overloading not possible by changing the return type in java?
When parseint method can be used?
why did you choose your career in IT?
What is cr keyboard?
Does Java support multiple Inheritance?
What are java packages?
I have a Arraylist object, it has duplecate values also. Now question is i want delete duplecate data in that objet with out using Set?
What is the concatenation operator in java?