Q: '' Traditionally, the first program people create simply reads "Hello World!". When you create a new C++ project, the "Hello World!" program will automatically appear in the file. Erase the existing code and rewrite it for yourself: #include <iostream> using namespace std; //main () is where program execution begins. int main () { cout <<"Hello World"; //prints Hello World return 0; } " This line of code appears in the file's header. The directive "#include" tells the program to include the file "<iostream>" in the current source file. Your C++ programs will not "compile" without this code " This line of code tells the compiler to use the standard C++ library. The standard C++ library is a collection of common functions and classes. Programmers use comments to annotate their code so that they (or anyone else reading the code) can understand more about what a particular section of code is meant to do. Comments appear in the code text but do not affect the program. In the "Hello world" program, "//main () is where program execution begins" is an example of a single line comment. Single line comments always begin with "//" and stop when the line ends. In C++, functions execute individual tasks. In the "Hello World" program, int main() is the main function. Program execution begins at this line of code. The statements inside the brackets describe the actual function. The statement cout << "Hello World"; generates the words "Hello World" on your screen. The statement return 0; terminates, or ends, the main function.
A: Launch your compiler and create a new C++ project. Select ''main.cpp. Write a "Hello World" program. Understand the meaning of "#include <iostream>. Understand the meaning of "using namespace std;. Understand comments. Understand the program's function.

Article: Bring your hands a bit higher than your head. Make sure they are about five inches in front of your forehead. Your wrists and palms should be facing toward the ceiling. Spread your fingers out wide. Both your thumbs should be facing toward your forehead. Keep your hands at an angle so that the thumb and forefinger of each hand is about two to three inches away from the thumb and forefinger of the other hand. When the ball comes to you, catch it with all of your fingers. Your ring and pinky fingers will help to keep the ball stable while your other fingers will help you to direct the ball. Having all your fingers on the ball makes it easier to control. Bend your elbows when you catch the ball to give your arms a wide range of motion. Don't hold the ball too long when you catch it or you will get called for a "lift." Make sure both hands touch the volleyball at the same time or you may get called for a "double contact." Finish your backset by pushing the ball up. Straighten your arms and release the ball into the air. Because you have already started the ball moving backwards, it will naturally travel behind you. End your backset by pushing the ball straight up to give your attacker an easier target to spike. The entire process from the catch to the release should be one quick motion. If your set looks disjointed, you might get called for holding on to the ball. You should form a "J" with your hands when you pull the ball back and release it. Remember to follow through with your hands after you release the ball to help it travel where you want it to go.
Question: What is a summary of what this article is about?
Position your hands. Catch the ball. Push the ball up.

Q: Most fish are coated in a moist protective layer of mucus, and too much contact can damage that layer. Keeping your hands wet while you hold the fish will help avoid damage. If you are using gloves, wet your gloves in the water before handling the fish. Pulling the fish out of the water at all can stress and potentially injure it. If you plan on releasing the fish, the best bet for its survival is to keep it in the water while you unhook it. If you have to raise it above the water to unhook it, try to keep it as close to the water as possible. This will help you determine how long you can safely keep the fish out of the water where it can breathe. While it's not a perfect measurement, it can be a convenient way to keep track of time and ensure that you remember to return the fish to water before it suffocates. If you don't want to hold your breath, keep track of time and make sure the fish isn't out of the water for more than 90 seconds. Placing your fingers behind the gill plate, or the flaps on either side of the fish's head, will typically give you a secure grip. Be very careful not to touch or insert your fingers in the actual gills, which are delicate organs necessary for the fish's survival. Smaller fish, such as crappie, bluegill, or tilapia, can usually be held with one hand. If the fish is big enough that it can be held with 2 hands, it's best to do so. This will keep the weight of the fish from damaging its bones or internal organs. Holding a large fish with 1 hand can put dangerous amounts of pressure on its jaw or gill plate. Keep 1 hand behind the gill plate and the other under its belly. Most largemouth bass, catfish, and carp are best held with both hands. It is very important to keep the fish's body straight to avoid bending its jaw or spine at an unnatural angle. For this reason, it is best not to move the fish around too much when handling it. It's also considered safer to keep the fish horizontal, since a vertical position is unnatural for most fish and could cause damage to internal organs. The fish's body should not be at more than a 10 angle to its head at any time. Many fish have dorsal fins, or fins on their backs, that can cut into your hand if you're not prepared. If you are holding a small fish with 1 hand, slide your hand from the front of the fish to the back to smooth the dorsal fin down under your palm so that you can safely grip the sides of the fish.
A:
Get your hands wet before handling the fish. Keep the fish underwater if possible. Hold your breath while you have the fish out of the water. Hold the fish horizontally with your hand behind the gill plate. Support larger fish with both hands. Keep the fish's body in a straight horizontal line. Avoid touching the sharp edges of the dorsal fins.