Conditionals are computer language statements that are used to handle decisions. Conditionals, in particular, carry out various computations.
If Statements allows a certain block of code to be executed when a condition is True, the condition checks the boolean expresssion the condition results in either true or false (1 or 0).
Syntax:
if condition {
//code to be executed
}
Example
fn main() {
let num = 75;
if num > 50 {
println!("Number Greater than 50")
}
}
When a if condition is true it executes a partiular block of code and if it is false then else statements piece of code executes.
Syntax:
if condition {
//block of code
} else {
// if condition is false then else statement runs
}
Example
fn main() {
let num = 12;
if num > 50 {
println!("Number Greater than 50")
} else {
println!("Number is not Greater than 50") //prints this line
}
}
In Rust, By using else-if we can check and executes multiple block o code.
Syntax:
if condition {
// block of code
} else if second-condition {
//block of code
} else if third-condition {
//block of code
} else {
// block of code
}
Example
fn main() {
let a = 11;
let b = 11;
if a > b {
println!("a is greater than b")
} else if a == b {
println!("a and b are equal") // prints this line
} else {
println!("b is greater than a")
}
}
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