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Submit Search. Successfully reported this slideshow. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime. Java Notes. Upcoming SlideShare. Like this presentation?
Why not share! Core java complete notes - Contact Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Abhishek Khune , Sr. Published in: Education , Technology.
Full Name Comment goes here. Are you sure you want to Yes No. Sunil Rathod , Assistant Professor at Dr.
Thanks Abhishek. Pamela Hester Teach your dog to stack rings! Teach your dog to play piano! Show More. Madhu Sudhanan at PGI. Shubham Bansal. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Java Notes 1. UNIT-1 2. Java: the complete reference, 7th editon, Herbert schildt, TMH. Understanding 2. OOP with Java, updated edition, T. Budd, pearson eduction. Some of the Object-Oriented Paradigm are: 1. Emphasis is on data rather than procedure. Programs are divided into objects.
Data Structures are designed such that they Characterize the objects. Programs that keep us informed often do so by displaying status and error messages. Usually, you're done after you move a message String into a ResourceBundle. This instruction three times to draw a simple triangle. However, everything in Java is enclosed within a class. This is possible by defining a method in a sub class that has the same name, same arguments and same return type as a method in the superclass. This is known as overriding.
When you throw an exception, you throw an object. You can't throw just any object as an exception, however -- only those objects whose classes descend from Throwable. In general, code you write should throw only exceptions, not errors. The following are the basic oops concepts: They are as follows: 1. Data Abstraction. Data Encapsulation. Dynamic Binding. Message Passing. UNIT-2 The power and popularity of C derived from the extensive use of pointers.
However, any incorrect use of pointers can cause memory leaks, leading the program to crash. Users have come to expect that Windows may crash or that a program running under Windows may crash. Hardware chips are evolving rapidly. As better chips become available, older chips become obsolete and their production is stopped. Manufacturers of toasters and washing machines would like to use the chips available off the shelf, and would not like to reinvest in compiler development every two-three years.
Much bigger than programming for consumer electronics. WebRunner was later renamed HotJava. The name Java survived the trade mark search. The same mechanism that helps ensure security also helps create portability. Range: to Range: 1. Range: 4. Range: 0 to Range: values true and false. Variables lifetime is confined to its scope! All are called members of the class.
If a method does not return any value, its return type must be void. Applied to a method or variable, completely visible. Private members are not visible within subclasses, and are not inherited.
The obvious reason for this is that strings are a very important part of programming. Even string constants are actually String objects.
Here are a few. You can obtain the length of a string by calling the length method. You can obtain the character at a specified index within a string by calling charAt. UNIT-3 Java: the complete reference, 7th edition, Herbert schildt, TMH. Budd, Pearson education. L2 L2. L5 L5. For example, people do not think of a car as a set of tens of thousands of individual parts.
They think of it as a well-defined object with its own unique behavior. They can ignore the details of how the engine, transmission, and braking systems work. Should be overridden when the equals method is changed. This method is also often overridden. Not all subclasses are subtypes, and at least in some languages you can construct subtypes that are not subclasses.
Defining new methods is not important for the argument. A type B is considered to be a subtype of A if an instances of B can legally be assigned to a variable declared as of type A.
Subtypes can also be formed using interface, linking types that have no inheritance relationship.
Java 2 Complete Ref – TMH
Inheritance: Basic concepts, access specifiers, usage of super key word, method overriding, final methods and classes, abstract classes, dynamic method dispatch, Object class. Classes and Objects: Concepts, methods, constructors, usage of static, access control, this key word, garbage collection, overloading, parameter passing mechanisms, nested classes and inner classes. Interfaces: Differences between classes and interfaces, defining an interface, implementing interface, variables in interface and extending interfaces. Strings: Exploring the String class, String buffer class, Command-line arguments.
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