varables and shadowing

variables/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "variables"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

variables/src/main.rs

@@ -0,0 +1,23 @@
+fn main() {
+    println!("Hello, world!");
+
+    let mut x = 5;
+    println!("X = {x}");
+    x = 6;
+    println!("X = {x}");
+
+    let shadowed = 5;
+    let shadowed = shadowed + 2; //overshadow
+
+    {
+        let shadowed = shadowed + 13; //overshadow in scope
+        println!("Shadowed in this scope is = {shadowed}");
+    }
+    println!("Shadowed in there is = {shadowed}");
+
+    let str = "Hello There";
+    println!("Str = {}", str);
+
+    let str = str.len(); //overshadow with different type
+    println!("Str = {}", str);
+}