What is derived datatype?
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Explain about features of local inner class?
We have two methods to create methods the threads. 1. Implementing runnable interface 2. Extending to thread class and overriding run method. Among these two which one is better and why? Please explain me in detail.
Is set thread safe java?
why java is not supporting multiple inheritence?
How many types of gc are there in java?
What is the range of a character variable?
What are the main concepts of oops in java?
What is an empty string in css?
What is a substring of a string?
What is a string what operation can be performed out with the help of a string?
write a program to create an arraylist and listeterator.and value should be enter through keyboard.
Name few java.lang classes introduced with java 8 ?