Programming Languages Module 5: Control Flows

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Questions and Answers

What paradigm in control flow typically involves loops?

  • Recursion
  • Iteration (correct)
  • Sequencing
  • Selection

In the context of control flows, what does the 'if' and 'case' statements represent?

  • Recursion
  • Sequencing
  • Selection (correct)
  • Procedural Abstraction

In the context of control flow operators, what does '&&' represent?

  • Logical OR (correct)
  • Multiplicative
  • Bitwise AND
  • Relational

What does the statement 'X=X+1' represent in the given code snippet?

<p>Assignment operation (D)</p> Signup and view all the answers

Which programming language has 6 levels of precedence for control flow operations?

<p>Ada (B)</p> Signup and view all the answers

What does the 'goto' statement do in the provided code snippet?

<p>Transfers control to a Vote label (D)</p> Signup and view all the answers

What is the main concept associated with static typing?

<p>Preventing operations on data that are not appropriate (D)</p> Signup and view all the answers

Which language is an example of being statically typed?

<p>Ada (B)</p> Signup and view all the answers

What does static typing mean for variables?

<p>Variables are assigned types that are checked at compile time (B)</p> Signup and view all the answers

Which language exhibits a mix of static and dynamic checking?

<p>Java (A)</p> Signup and view all the answers

What happens when a String variable is assigned an integer value like '1'?

<p>Compile-time error occurs (D)</p> Signup and view all the answers

What is a key aspect of defining data fields for storage?

<p>Defining the data type and storage method (B)</p> Signup and view all the answers

In the context of types, what does 'strong typing' refer to?

<p>Preventing type errors in the program (B)</p> Signup and view all the answers

Why is encoding by a type necessary when storing data?

<p>To ensure data is stored in the correct format (A)</p> Signup and view all the answers

Which of the following is NOT associated with a type?

<p>Functions (C)</p> Signup and view all the answers

What is the main purpose of type checking in programming?

<p>To ensure meaningless operations do not occur (B)</p> Signup and view all the answers

What does creating equivalence classes for declaration elements help with?

<p>Facilitating type checking in expressions (C)</p> Signup and view all the answers

What is the principal reason for using complex expressions when comparing integers?

<p>To improve code optimization (A)</p> Signup and view all the answers

Which program transformation technique aims to make code consume less resources and deliver high speed?

<p>Code Optimization (B)</p> Signup and view all the answers

What is a criticism often made about recursion compared to iteration?

<p>Recursion is less efficient and slower than iteration (D)</p> Signup and view all the answers

What is a common problem associated with enumeration-controlled loops?

<p>They are hard to understand (C)</p> Signup and view all the answers

Which type of loops allows for very efficient code generation by using designated variables for iteration?

<p>Fortran-style loops (B)</p> Signup and view all the answers

What is the main purpose of code optimization?

<p>To improve code efficiency and speed (B)</p> Signup and view all the answers

How can arrays be described in terms of their data types?

<p>Homogeneous (D)</p> Signup and view all the answers

In which memory area are arrays allocated if their shape is known at compile time and they exist throughout the program's execution?

<p>Static global memory (C)</p> Signup and view all the answers

What is a slice or section in relation to an array?

<p>A rectangular portion (D)</p> Signup and view all the answers

What layout strategy do most programming languages use for arrays?

<p>Row major (A)</p> Signup and view all the answers

What does the term 'ROW POINTERS' refer to in relation to arrays?

<p>An option in C to allow rows to be stored at different memory locations (D)</p> Signup and view all the answers

What does it mean when it's mentioned that arrays have a 'local lifetime' and a 'shape bound at elaboration time'?

<p>The array exists only within a specific function and its size is known at compile time (A)</p> Signup and view all the answers

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