What is the difference between if statement and for loop with example?
Answer 502ba513cee2ca000204147b For Loops will execute a block of code a specified number of times. The if/else loop is a conditional statement (do this or do that). Use this statement to execute some code if the condition is true and other code if the condition is false.
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What is the difference between for and while loop?
for loop vs while loop The difference between the for loop and the while loop is that in the for loop the number of iterations to perform is already known and is used to obtain a certain result, while in the while loop the command is executed until that a certain condition is met and the statement is proven to be false.
Is while faster than if?
A WHILE statement loop will execute much faster than an IF statement loop in applications where the loop places many commands in a program. The greater the distance from the beginning of the program to the N-word, the longer it will take to find it.
When can you use the IF ELSE statement?
Use two if statements if both conditions of the if statement could be true at the same time. In this example, both conditions can be true. You can pass and do well at the same time. Use an if/else statement if the two conditions are mutually exclusive, meaning that if one condition is true, the other condition must be false.
Should I use if or while?
An if statement checks whether an expression is true or false, and then executes the code within the statement only if it is true. The code inside the loop is only executed once… A while statement is a loop. Basically, it continues executing the code in the while statement for as long as the expression is true.
What is the difference between a while statement and an IF statement?
The difference is that the body of a while loop can be executed many times, the body of a conditional will only be executed once or not at all. The difference between if and switch is that if accepts an arbitrary expression as a condition and switch only takes values to compare against.
How is a SWITCH CASE statement different from an if else statement?
The switch case statement parses the value of an expression and a block code is selected based on that evaluated expression. What is an If-else statement? An if-else statement in programming is a conditional statement that executes a different set of statements depending on whether an expression is true or false.
What is the difference between case, while and while?
The case is slightly different – it’s usually designed for more than two options, like when you want to do different things depending on a character – note that you can use the case for two options (or even one), but it’s a bit like swatting a fly with a thermonuclear warhead. While it is not a selection variant but an iteration one.
What is the difference between decoding and case statement?
Case statement. Decode is an Oracle system function. The case is an Oracle declaration, not a function. Decoding cannot work other than = Equals operator. The case statement can work differently than the operator. The decode statement cannot work with subqueries and predicates. The case statement works with subqueries and predicates.