What is the difference between if and else with example?
else if allows you to say “ok, if the previous condition was not true, then if this condition is true…”. The else says “if none of the conditions above were true…” You can have multiple else if blocks, but only one if block and only one (or zero) else blocks.
What is the difference between 10 and 10?
‘a=10’ is used to assign the value of 10 in ‘a’ variable whereas ‘a==10’ compare the value of ‘a’ variable with 10. Explanation: In “a=10”, a is a variable that is initialized by 10 value because in any programming language “=” stands for assignment operator which is used to assign the value for any variable.
What are the differences between if and switch statement?
SWITCH allows expression to have integer based evaluation while IF statement allows both integer and character based evaluation. SWITCH statement can be executed with all cases if the ‘break’ statement is not used whereas IF statement has to be true to be executed further.
What are the differences between switch and if?
The if statement evaluates integer, character, pointer or floating-point type or boolean type. On the other hand, switch statement evaluates only character or a integer datatype. Sequence of execution is like either statement under if block will execute or statements under else block statement will execute.
What’s the difference between == and ===?
The difference between == and === is that: == converts the variable values to the same type before performing comparison. This is called type coercion. === does not do any type conversion (coercion) and returns true only if both values and types are identical for the two variables being compared.
What is the difference between and == operators?
The ‘==’ operator checks whether the two given operands are equal or not….What is the difference between = (Assignment) and == (Equal to) operators.
| = | == |
|---|---|
| It is used for assigning the value to a variable. | It is used for comparing two values. It returns 1 if both the values are equal otherwise returns 0. |
What is the difference between multiple IF and ELSE IF?
When you have multiple if statements, each is evaluated separately, and if the conditions are right, the code in all of them might be executed. If you have if / elif statement, the second condition would be evaluated only after particular result of the evaluation of the first condition.
Which is better if else or switch?
if-else better for boolean values: If-else conditional branches are great for variable conditions that result into a boolean, whereas switch statements are great for fixed data values. Speed: A switch statement might prove to be faster than ifs provided number of cases are good.
Why switch is better than if-else?
– Better Semantics. Switch statements express a different meaning than a chain of if-else statements. – Less room for errors and nonsense. One problem of an if-else chain is that it allows any comparison, with any variable. – Reduced duplication. Long chains of if-else have unnecessary syntax overhead. – Better performance. – Language problems.
What does if else statement mean?
In programming languages, an else statement is an alternative statement that is executed if the result of a previous test condition evaluates to false.
What is an else if statement?
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.
What is an else if statement in Java?
If-else statement in java is used for conditional checks for decision making. You can have multiple hierarchies of if-else statements. Once any of the if or else-if condition satisfies it executes the block of statements corresponding to it. An else statement is optional.