Answer:
Iterator is the element that used for transversing of any container by the user. This provides the facility to user to process any constituent belonging to the container and storage of these elements can be in any form.
This situation takes place under the isolation condition of the user from the container's internal model. Abstract data types use iterators for the maintenance of the transversal of the data structure.
Answer: To reuse a method means to use a code which has been done or prepared already and just we need to change some of the functionalities.
This helps a great deal of saving time as well as helps in making the code manageable.
Explanation:
This has been practiced since long that methods can be reused. for example we need to build a calculator in c. then we can simply reuse the same method just we need to change the sign of the operator. So in this process we can speed up our operations and work and also can make the code easy to understand and manage it when we have have to deal with large lines of code.
The answer is (c.) synthetic rubber
The impeller pump in some outboard motor is made of synthetic rubber. The purpose of the impeller in the motor is for the cooling. It is used to pump the water to the engine from below. It has a standard design and it only uses rubber as the material.
