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Question:
(a) What are the main differences between an object and a class? Illustrate with appropriate examples.
(b) Differentiate between a global variable and a local variable. You may use a simple Java program to illustrate your answer.
(c) What do you understand by the term ‘constructor' in Java? Explain your answer with an appropriate example.
(d) Declare and initialise an array of type float of size 5 to store the marks obtained by a student at his examinations. Initialise the array with the following values {65, 57, 75, 49, 88}.
Write the code fragments in Java to find:
(i) the average mark obtained by the student at the examinations. (ii) the highest mark obtained by the student. (iii) the lowest mark obtained.
What do you mean by synchronization and its importance?
What are three ways in which a thread can enter the waiting state ?
program for hinged beam
SMTP (Simple Mail Transfer Protocol) permits two mail servers to communicate using a easy language, and gives a step-by-step protocol for exchanging information. SMTP delivers m
Why there is a need to use primary key in database ? Primary key is a constraint basically used in datdabase to uniquely identify the records in the database.
Model-View-Controller (MVC) is a design pattern put together to help control change. MVC decouples interface from business logic and data. ? Model: The model having the core of
how to solve this error
design a payrol (non GUI)
What type of information can be stored in a database? In a database we can store several types of informations like: • Numbers, Booleans, text • Sounds • Images • Video
Converting Strings to Numeric Primitive Data Types To convert a string which is containing digits to a primitive data type, wrapper classes can help. parseXxx method can be u
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