langs a-z

Task/Associative-array-Iteration/Vala/associative-array-iteration.vala

@@ -0,0 +1,29 @@
+using Gee;
+
+void main(){
+    // declare HashMap
+    var map = new HashMap<string, double?>();
+
+    // set 3 entries
+    map["pi"] = 3.14;
+    map["e"] = 2.72;
+    map["golden"] = 1.62;
+
+    // iterate over (key,value) pair
+    foreach (var elem in map.entries){
+        string name = elem.key;
+        double num = elem.value;
+
+	stdout.printf("%s,%f\n", name, num);
+    }
+
+    // iterate over keys
+    foreach (string key in map.keys){
+	stdout.printf("%s\n", key);
+    }
+
+    // iterate over values
+    foreach (double num in map.values){
+	stdout.printf("%f\n", num);
+    }
+}