infinity loop demonstration

src/sum of digits in number

@@ -0,0 +1,14 @@
+fn main(){
+    let  x = 234;
+    let a = x%10;
+    println!("a={}",a);
+    let aa = x/10;
+    let s = aa%10;
+    println!("s={}",s);
+    let ss = aa/10;
+    let d = ss%10;
+    println!("d={}",d);
+    let f = a+s+d;
+    println!("the sum is ={}",f);
+
+}

src/trivial_demonstrations/demonstration_of_rust_features/infloop.rs

@@ -0,0 +1,11 @@
+fn main(){
+    let mut x=0;
+
+        loop{
+             x += 5;
+           if  x==100{
+               break;
+           }
+           println!("the value of x ={}",x);
+        }
+}