add enums and data holding enums

containers/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "containers"
+version = "0.1.0"

containers/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "containers"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

containers/src/main.rs

@@ -0,0 +1,32 @@
+enum Direction
+{
+    Up,
+    Down,
+    Left,
+    Right
+}
+
+enum Status
+{
+    Succeeded(String),
+    Failed(String)
+}
+
+fn main() {
+    // normal Enum
+    let direction = Direction::Down;
+    match direction {
+    Direction::Up => println!("Going up"),
+    Direction::Down => println!("Going down"),
+    Direction::Left => println!("Going left"),
+    Direction::Right => println!("Going right"),
+  }
+
+  // enum holding data
+  let status = Status::Failed(String::from("Authentication Failed"));
+  match status
+  {
+    Status::Succeeded(message) => println!("Succeeded with msg: {}",message),
+    Status::Failed(message) => println!("Failed with msg: {}",message),
+  }
+}

control_flow/Cargo.lock

@@ -0,0 +1,7 @@
+# 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

@@ -0,0 +1,6 @@
+[package]
+name = "control_flow"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

control_flow/src/main.rs

@@ -0,0 +1,109 @@
+fn main() {
+    //if else statements
+    let mut num1 = 10;
+    let mut num2 = 5;
+
+    if num1 < num2 {
+        println!("{} is smaller then {}", num1, num2);
+    } else {
+        println!("{} is bigger then {}", num1, num2);
+    }
+
+    //if expressions
+    //always need a else case and must be of the same type, ternary operations do not exist but this results the same
+    num1 = if num1 != num2 { 5 } else { 15 };
+    println!("num 1: {}", num1);
+
+    //match
+    //same as switch case
+    match num1 {
+        1 => println!("Number is 1"),
+        2 => println!("Number is 2"),
+        3 => println!("Number is 3"),
+        6 => println!("Number is 6"),
+        7 => println!("Number is 7"),
+        _ => println!("Number is none of the other statements"),
+    }
+    // _ is a default and altough syntax specifies => it should be an exact match
+
+    //combining match results
+    match num2 {
+        1 | 2 | 3 | 4 => println!("Number is in range of 1 to 4"),
+        5 | 7 => println!("Number is 5 or 7"),
+        _ => println!("Number is none of the above"),
+    }
+
+    //match expression
+    println!("Old number for num2: {}",num2);
+    let num2 = match num2 {
+         1 | 2 | 3 | 4 => 1234,
+        5 | 7 => 57,
+        _ => -1,
+    };
+    println!("New number for num2: {}",num2);
+
+    //loops
+    let mut loop_cycles = 1;
+    loop {
+        
+        println!("this is loop: {}",loop_cycles);
+        if loop_cycles == 3 {break};
+        loop_cycles += 1
+    }
+
+    //loop expression
+    loop_cycles = 1;
+    let result = loop {
+        
+        println!("cycle: {}",loop_cycles);
+        
+        if 7 % loop_cycles == 2 {break loop_cycles};
+
+        loop_cycles += 1
+    };
+    println!("it took {} cycles to resolve the expression",result);
+
+    //while 
+    loop_cycles = 1;
+    while 5 > loop_cycles {
+        if loop_cycles == 2
+        {
+            loop_cycles +=1;
+            continue;
+        }
+        println!("while loop {}",loop_cycles);
+        loop_cycles += 1;
+    }
+
+    //for loops
+    //1..5 is 1 up to 5 not including 5
+    for x in 1..5 
+    {
+        println!("for loop: {}",x);
+    }
+    //1..=5 is 1 up to and including 5
+    for x in 1..=5 
+    {
+        println!("for loop including: {}",x);
+    }
+
+    //functions
+    custom_func();
+    say_name("John Cena");
+    println!("{}", sum(1,5));
+}
+
+fn custom_func()
+{
+    println!("custom func");
+}
+
+fn say_name(name: &str)
+{
+    println!("my name is: {}",name);
+}
+
+fn sum(number1 : i32, number2 : i32) -> i32
+{
+    return number1 + number2;a
+}

ownership/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "ownership"
+version = "0.1.0"

ownership/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "ownership"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

ownership/src/main.rs

@@ -0,0 +1,34 @@
+fn main() {
+    let a ="Hello".to_string();
+    let b = a;
+
+    //println!("{}",a); This will error because a no longer owns the string
+    println!("{}",b);
+
+    //simple types like number characters and booleans are copied not moved
+    let c = 5;
+    let d = c;
+    println!("{}",c);
+    println!("{}",d);
+
+    // when ownership does not need to be moved clone can be used.
+    let e ="Test".to_string();
+    let f = e.clone();
+
+    println!("{}",e);
+    println!("{}",f);
+
+    // references in cpp is called borrowing in rust
+    let g = String::from("Reference test");
+    let h = &g;
+
+    println!("{}", g);
+    println!("{}", h);
+
+    // mutable references
+    let mut i = String::from("Mutable Reference test");
+    let j = &mut i;
+    j.push('!');
+
+    println!("{}", j);
+    }

variables/src/main.rs

@@ -11,6 +11,10 @@ fn main() {
     let height: f64 = 1.79;
     let character: char = 'M';
     let has_driver_license: bool = true;
+    let mut text = "Hello".to_string();
+    text.push_str(" World");
+    let text2 = String::from("Hello world2");
+    println!("{} {}",text,text2);
 
     //make them mutable by mut modifier
     let mut middle_name = "Levy";