In this tutorial, we will learn about else-if statements in Rust. We will cover the basics of conditional execution using if-else-if statements.
An else-if statement is a conditional statement that allows multiple conditions to be tested sequentially. It provides a way to execute different code blocks based on different conditions.
The syntax for the else-if statement in Rust is:
if condition1 {
// Code block to execute if condition1 is true
} else if condition2 {
// Code block to execute if condition2 is true
} else {
// Code block to execute if none of the conditions are true
}
The else-if statement evaluates the specified conditions in order. The first condition that is true will have its code block executed; if none of the conditions are true, the code block inside the else statement is executed.
num
.num
.num
is positive, negative, or zero.num
is positive, negative, or zero.fn main() {
let num = -5;
if num > 0 {
println!("{} is positive.", num);
} else if num < 0 {
println!("{} is negative.", num);
} else {
println!("{} is zero.", num);
}
}
-5 is negative.
marks
.marks
.marks
.fn main() {
let marks = 85;
if marks >= 90 {
println!("Grade: A");
} else if marks >= 80 {
println!("Grade: B");
} else if marks >= 70 {
println!("Grade: C");
} else if marks >= 60 {
println!("Grade: D");
} else {
println!("Grade: F");
}
}
Grade: B
temperature
.temperature
.temperature
.fn main() {
let temperature = 75.5;
if temperature > 100 {
println!("It's extremely hot.");
} else if temperature > 85 {
println!("It's hot.");
} else if temperature > 60 {
println!("It's warm.");
} else if temperature > 32 {
println!("It's cold.");
} else {
println!("It's freezing.");
}
}
It's warm.