Bt0074, oops with java
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The document is an assignment brief for BSc IT Semester 3 students, detailing the subject 'OOP with Java' (Code: BT0074) and providing instructions for solving various programming questions. It outlines key concepts in Java programming, including keywords, syntax and usage of if-else statements, inheritance, exception handling, the lifecycle of applets, and JavaBeans. The document also specifies requirements for answers and provides a contact for further assistance.
Bt0074, oops with java
- 1. Dear students get fully solved assignments Send your semester & Specialization name to our mail id : “ [email protected] ” or Call us at : 08263069601 ASSIGNMENT PROGRAM BSc IT SEMESTER 3 SUBJECT CODE & NAME BT0074, OOPS with JAVA CREDIT 4 BK ID B1002 MAX.MARKS 60 Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each questionis followedbyevaluationscheme. 1 What are the keywords that java supports? Describe the data types available in java programming language. Answer: In the Java programming language, a keyword is one of 50 reserved words that have a predefined meaning in the language; because of this, programmers cannot use keywords as names for variables, methods, classes, or as any other identifier. Due to their special functions in the language, most integrated development environments for Java use syntax highlighting to display keywords in a differentcolorforeasyidentification. 2 Describe the syntax and working of if-else with an example. Also write a program in java that assigns a grade based on the value of a test score: an A for a score of 90% or above, a B for a score of 80% or above,and so on. Answer:General if..else syntaxisasfollows:
- 2. 3 Describe with the helpof an example the implementationofinheritance injava. Answer: Inheritance in Java is an Object oriented or OOPS concepts, which allows to emulate real world Inheritance behavior, Inheritance allows code reuse in Object oriented programming language e.g. Java. Along with Abstraction, Polymorphism and Encapsulation, Inheritance forms basis of Object oriented programming. Inheritance is implemented using extends keyword in Java and When one Class extends another Class it inherit all non private members including fields and methods. Inheritance in Java can be best understand in terms of Parent and Child class, also known as Super class and Sub class in Java programming language. The class which extends another class becomes Child of the class it extends and inheritall itsfunctionalitywhichisnotprivate 4 Describe the catch and finallyblockstatement injava with examples. Answer: A finally statement must be associated with a try statement. It identifies a block of statements that needstobe executedregardlessof whetherornotan exceptionoccurswithinthe tryblock. After all other try-catch processing is complete, the code inside the finally block executes. It is not mandatory to include a finally block at all, but if you do, it will run regardless of whether an exceptionwasthrownandhandledbythe tryand catch parts of the block. In normal executionthe finally 5 Draw and Explainthe Life cycle of a java appletwith an example. Answer: /* AppletLife Cycle Example Thisjavaexample explainsthe lifecycle of Javaapplet. */ importjava.applet.Applet; importjava.awt.Graphics; 6 Define java beansand beanbox.Describe the advantages of java beanbox. Answer: In computing based on the Java Platform, JavaBeans are classes that encapsulate many objects into a single object (the bean). They are serializable, have a zero-argument constructor, and allow access to properties using getter and setter methods. The name "Bean" was given to encompass this standard, whichaimsto create reusable software componentsforJava. Advantages: The properties,events,andmethodsof a
- 3. Dear students get fully solved assignments Send your semester & Specialization name to our mail id : “ [email protected] ” or Call us at : 08263069601