Dolphins have excellent eyesight and hearing. Underwater they use echolocation. Echolocation is kind of like sonar where dolphins make a sound and then listen to the echo. Their hearing is so sensitive to these echoes that they can almost see objects in the water by hearing. This allows dolphins to locate food in cloudy or dark water.
Hello World - Writing, Compiling and Running a C++ Program. When you write a program, you use a development environment. Your development environment can be a basic text editor or a feature rich C++ integrated development environment (IDE).
C (one of the most widely used procedural programming languages) C++ (One of the most widely used object-oriented (OO) languages specially used in large-scale, highly complex, high-performance software systems) C# (compiled into intermediate language, which generates a native image at runtime)