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What is the difference between if and if else statement?
The if statement is a decision-making structure that consists of an expression followed by one or more statements. The if else is a decision-making structure in which the if statement can be followed by an optional else statement that executes when the expression is false.
What does IF ELSE statements mean?
If else. An if else statement in programming is a conditional statement that runs a different set of statements depending on whether an expression is true or false. A typical if else statement would appear similar to the one below (this example is JavaScript, and would be very similar in other C-style languages).
What does IF THEN ELSE mean?
Definition of: if-then-else. if-then-else. A high-level programming language statement that compares two or more sets of data and tests the results. If the results are true, the THEN instructions are taken; if not, the ELSE instructions are taken.
Do we use else with unless statement?
Unless statement can be followed by an optional else statement, which executes when the boolean expression is true. Unless statement can be followed by an optional elsif…else statement, which is very useful to test the various conditions using single unless…elsif statement.
How does an if else statement work?
The else statement is an optional statement that is normally used in an “if-else” or “if-else if-else” construction. The way the else statement works is that, if the condition associated with either the “if” or the “else if” control structure is false, program control automatically goes to the else statement, if present.
Why to use else if?
If-else statements is used to control the flow of a program. The if statement test a condition and if the condition is true, the if statement block will execute. The else statement will execute if an if condition is not true. The elseif statement is used to form chains of conditions.