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    • Java Operators

      Java Operators

      Java Operator Operator Description [ ] Array index () Method call . Member access ++ Prefix or postfix increment — Prefix or postfix decrement + – Unary plus, minus ~ Bitwise NOT ! Boolean (logical) NOT (type) Type cast new Object creation * / % Multiplication, division, remainder + – Addition, subtraction + String concatenation

    • Constructors in Derived Classes

      A constructor plays a vital role in initializing an object. An important note, while using constructors during inheritance, is that, as long as a base class constructor does not take any arguments, the derived class need not have a constructor function. However, if a base class contains a constructor with one or more arguments, then

    • Exception Handling

      Exception Handling

      There are two kinds of exceptions, namely, synchronous exceptions and asynchronous exceptions. Errors such as “out-of-range index” and “over-flow” belong to the synchronous type exceptions. The errors that are caused by events beyond the control of the program (such as keyboard interrupts) are called asynchronous exceptions. The proposed exception handling mechanism in C++ is designed

    • How to Find Security Vulnerabilities in Source Code

      How to Find Security Vulnerabilities in Source Code

      The original, and still the best, method for finding security vulnerabilities in source code is to read and understand the source code. Source code security vulnerabilities will vary between languages and platforms. Items to look for in C code include: Potential vulnerability Function calls to examine for vulnerabilities Buffer overflows gets(), scanf(), sprintf(), strcat(), strcpy()

    • Deleting an Element from a Heap

      Deleting an Element from a Heap

      Deleting an Element from the Heap Deletion always occurs at the root of the heap. If we delete the root element it creates a hole or vacant space at the root position. Because the heap must be complete, we fill the hole with the last element of the heap. Although the heap becomes complete, i.e.

    • Java Loops – For, While, and Do

      Java Loops – For, While, and Do

      Java supports three types of loops: For, While, and Do. The Java For Loop The Java for loop is a looping construct which continually executes a block of statements over range of values. Java for Loop Syntax The syntax of a for loop in Java is: for (initialization; termination; increment) { statement } Example Java

    • How to Declare a Constant in Java

      How to Declare a Constant in Java

      Java does not directly support constants. However, a static final variable is effectively a constant. The static modifier causes the variable to be available without loading an instance of the class where it is defined. The final modifier causes the variable to be unchangeable. Ex: public static final int FOUNDING_YEAR = 2001; Naming Standards for

    • Disassembler

      Disassembler

      A disassembler is a software that is able to convert an executable language into an assembly language, allowing users to view the individual commands that make a program work. A disassembler is ideal for programming applications because it can be useful when a programmer is attempting to create a similar program to one he/she already

    • Hex Editor

      Hex Editor

      A hex editor is a program edits compiled programs and binary data files. These editors are called hex editors because they most often present data in hexadecimal format. Hexadecimal is used because it is easier for most humans than working in binary. In addition, hexadecimal is frequently useful because computers tend to work with 8-bit

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