Add some exercises about variables!

4 files changed, 30 insertions, 0 deletions

diff --git a/variables/variables1.rs b/variables/variables1.rs
new file mode 100644
index 0000000..3035bfa
--- /dev/null
+++ b/variables/variables1.rs
@@ -0,0 +1,6 @@
+// Make me compile!
+
+fn main() {
+    x = 5;
+    println!("x has the value {}", x);
+}
diff --git a/variables/variables2.rs b/variables/variables2.rs
new file mode 100644
index 0000000..9368488
--- /dev/null
+++ b/variables/variables2.rs
@@ -0,0 +1,10 @@
+// Make me compile!
+
+fn main() {
+    let x;
+    if x == 10 {
+        println!("Ten!");
+    } else {
+        println!("Not ten!");
+    }
+}
diff --git a/variables/variables3.rs b/variables/variables3.rs
new file mode 100644
index 0000000..cadb40b
--- /dev/null
+++ b/variables/variables3.rs
@@ -0,0 +1,8 @@
+// Make me compile!
+
+fn main() {
+    let x = 3;
+    println!("Number {}", x);
+    x = 5;
+    println!("Number {}", x);
+}
diff --git a/variables/variables4.rs b/variables/variables4.rs
new file mode 100644
index 0000000..c9a63f5
--- /dev/null
+++ b/variables/variables4.rs
@@ -0,0 +1,6 @@
+// Make me compile!
+
+fn main() {
+    let x: i32;
+    println!("Number {}", x);
+}