In writing the code for a method, a programmer might use the keyword "this". When the method is invoked from somewhere in the program, what does this refer to?
1. Why declaration of a variable is considered to be an important (and sometimes required) part of good programming practice?
2. Name few languages that allow use of variables without even declaring them. Discuss about its pros and cons?
3. What is a keyword in a programming language? Why it is not a good practice to use
Define a class named Document that contains an instance variable of type String named text that stores any textual content for the document. Create a method named toString that returns the text field and also include a method to set this value.
Next, define a class for Email that is derived from Document and includes member v
1. Why is top down design beneficial. Compare this type of design to another type of design you known.
2. This and that is a powerful keyword used in Java. How is it used and why is it so beneficial? Give an example in your explanation.
2. What are the major differences between the Java programming language and the language discussed in question 1.
Don't let this questions get out of hand, the main point of this questions is to discuss programming languages. SQL, HTML OR XML does not qualify as a programming language for this question.
Write a function that includes the following sequence of statements:
x = 21;
int x;
x = 42;
I need to run the program in C, C++, and JAVA. If I can get started in one of the languages I will be able to complete the rest. Thanks.
