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What structure allows you to test the value of a variable or an expression and then use that to determine which statement or set of statements to execute?
multiple alternative decision structure / case structure
What structure causes a statement or set of statements to execute repeatedly?
A Loop.
The statement can cause other statements to execute under certain conditions?
Selection statement: if, switch/case, ternary conditional operator.
A group of statements that execute as a unit is a?
Transaction.
In which of the following scenarios would you need to use a nested IF statement?
You use a nested if when the condition is dependent upon another condition. For example: if (ptr != nullptr) { // ptr is non-null -- test the value it refers to if (ptr* == 0) { // the value pointed to by ptr is zero } else { // the value pointed to by ptr is non-zero } } In this case, the alternative to a nested if creates an inefficiency: if (ptr != nullptr && *ptr == 0 ) { // ptr is valid and refers to the value zero } else if (ptr != nullptr) { // ptr is valid and refers to a non-zero value } In this example, the expression "ptr != nullptr" is evaluated twice when ptr is valid and refers to a non-zero value. The nested if only evaluates this expression one time.
Is a set of statements that execute in the order that they appear?
Sequence structure, is a set of statements that execute in the order that they appear By evolutionx86
What structure allows you to test the value of a variable or an expression and then use that to determine which statement or set of statements to execute?
multiple alternative decision structure / case structure
What is condition structure?
A condition structure is a programming construct that allows you to execute certain code based on whether a specific condition is true or false. It typically involves the use of if-else statements to control the flow of the program based on different scenarios or conditions.
What structure causes a statement or set of statements to execute repeatedly?
A Loop.
The statement can cause other statements to execute under certain conditions?
Selection statement: if, switch/case, ternary conditional operator.
A group of statements that execute as a unit is a?
Transaction.
What is the difference between executenonquery and executequery?
ExecuteQuery() :To Execute SELECT StatementExecuteNonQuery() :To Execute Other Than Select Statements (INSERT/UPDATE/DELETE)
What is the difference between do while and while?
In while, from the very first term, every time, the related conditions in while will be checked and then the statements will execute. But, in do-while, all the statements under do will execute once and then compiler will check the while condition. Therefore, only first time only statements will execute without checking the conditions in while, but not from the second term repetition. written by DILSHAN MADUSANKA dilshanmadusanka@yahoo.com
In which of the following scenarios would you need to use a nested IF statement?
You use a nested if when the condition is dependent upon another condition. For example: if (ptr != nullptr) { // ptr is non-null -- test the value it refers to if (ptr* == 0) { // the value pointed to by ptr is zero } else { // the value pointed to by ptr is non-zero } } In this case, the alternative to a nested if creates an inefficiency: if (ptr != nullptr && *ptr == 0 ) { // ptr is valid and refers to the value zero } else if (ptr != nullptr) { // ptr is valid and refers to a non-zero value } In this example, the expression "ptr != nullptr" is evaluated twice when ptr is valid and refers to a non-zero value. The nested if only evaluates this expression one time.
What optional statement can be used in a case structure to execute statements when all other conditions are false?
default : <statement>; i.e. switch (value) { case 1 : do_this(); break; case 2 : do_that(); break; default : do_whatever(); }
What Case Structure Is A Alternative Decision Structure?
An alternative decision structure in programming is typically implemented using the "switch" statement or "case" structure. This structure allows for multiple possible execution paths based on the value of a variable, enabling the program to execute different blocks of code depending on specific cases. It provides a more organized way to handle multiple conditions compared to using multiple "if-else" statements.
What are the conditional statement of turbo c plus plus dos based?
Statements that check an expression then may or may not execute a statement or group of statements depending on the result of the condition.
