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chapter-13 Other useful free tools and services

 chapter-13 Other useful free tools and services  Choose the most appropriate option from those given below :  (1) Which of the following refers to a file that has an entire directory structure inside it ?  (a) apache  (b) archic  (c) archi  (d) archive  (2) What is the full form of tar ?  (a) tape archiver  (b) tech archiver  (c) test archiver  (d) tight archiver  (3) For which types of archives is the password protection option available ?  (a) zip  (b) tar  (c) tar.gz  (d) both zip and tar.gz  (4) Which of the following is a feature-rich media player ?  (a) VAC  (b) VEC  (c) VLC  (d) VNC  (5) What is the full form of VLC ?  (a) VideoLAN Client  (b) Video Line Coder  (c) Video Length Coder  (d) Video List Creater  (6) Which technology gives our location with accuracy ?  (a) GRS  (b) GPRS  (c) GRPS  (d) GPS  (7) Which program is used to enter Unicode characters into any application ?  (a) Character Display  (b) Character Insert  (c) Character Map  (d) Character Select  (8) Which comma

Class 12th Chapter 9 Working with Array and String

An array is a variable representing a collection of homogeneous type of elements. Arrays are useful to represent vector, matrix and other multi-dimensional data. Vector is a one dimensional (1-D) data structure that can be used to store list of items like characters, numbers. Arrays are useful when same operations are to be performed on various elements of the similar type. Creating an array is a two step process: 1. Declare an array object 2. Create an array object An array object can be created in two ways: 1. Using new operator and specifying the size 2. Directly initializing the content of array   To declare a 1-D array we use a pair of square brackets [ ] after array name or after data type.  Choose the most appropriate from those given below : (1) Which of the following refer to the starting index value in arrays ? (a) 0 (b) 1 (c) null (d) All of these (2) What is the size of second dimension in an array sales[5][12] ? (a) 5 (b) 12 (c) 60 (d) 10 (3) What will expression sales.len

Class 12th Chpater -7 Java Basics

Java is an object-oriented programming language developed by Sun Microsystems, a company best known for its high-end Unix workstations. Introduction to Java Java language was developed at Sun Microsystems in 1991.  Java is small, fast, efficient, and easily portable to a wide range of hardware devices. also a general-purpose programming language for developing programs that are easily usable and portable across different platforms. Java is an object-oriented language and here it differs from C. Using Java, we can take full advantage of object oriented methodology and its capabilities of creating flexible, modular and reusable code. Control Structures :- In general, the statements are executed sequentially, one by one. Sometimes, program logic needs to change the flow of this sequence. The statements that enable to control the flow of are considered as control structures. There are two types of control structures: loops and branches. Loops are used to repeat a sequence of statements ove

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