Rust learning: lessons, notes, and exercise crates

control_flow/.gitignore

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+/target

control_flow/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "control_flow"
+version = "0.1.0"

control_flow/Cargo.toml

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+[package]
+name = "control_flow"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

control_flow/src/main.rs

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+fn main() {
+    let number = 3;
+
+    if number < 5 {
+        println!("condition was true");
+    } else {
+        println!("condition was false");
+    }
+
+    let number = 12;
+
+    if number % 4 == 0 {
+        println!("number is divisible by 4");
+    } else if number % 3 == 0 {
+        println!("number is divisible by 3");
+    } else if number % 2 == 0 {
+        println!("number is divisible by 2");
+    } else {
+        println!("number is not divisible by 4, 3, or 2");
+    }
+
+    let condition = true;
+    let number = if condition { 5 } else { 6 };
+
+    println!("The value of number is: {number}");
+
+    {
+        let x = 5;
+        println!("this is five {x}")
+    }
+
+    let mut count = 0;
+    'counting_up: loop {
+        println!("count = {count}");
+        let mut remaining = 10;
+
+        loop {
+            println!("remaining = {remaining}");
+            if remaining == 9 {
+                break;
+            }
+            if count == 2 {
+                break 'counting_up;
+            }
+            remaining -= 1;
+        }
+
+        count += 1;
+    }
+    println!("End count = {count}");
+
+    let a = [10, 20, 30, 40, 50];
+
+    for element in a {
+        println!("the value is: {element}");
+    }
+
+    for number in (1..4).rev() {
+        println!("{number}!");
+    }
+    println!("LIFTOFF!!!");
+}