Create Constant.rs

code/Constant.rs

@@ -0,0 +1,26 @@
+fn main()
+{
+    // we cant use mut with const
+    // **we cant use small letters for const
+
+    const SECONDS_PER_MINUTE: u32 = 60; // we have to provide a type for the const
+    println!("{} seconds in a minute", SECONDS_PER_MINUTE);
+
+    const MINUTES_PER_HOUR: i32 = 60;
+    println!("{} minutes in an hour", MINUTES_PER_HOUR);
+
+    const HOURS_PER_DAY: f32 = 24.0;
+    println!("{} hours in a day", HOURS_PER_DAY);
+
+    const DAYS_PER_WEEK: f64 = 7.0;
+    println!("{} days in a week", DAYS_PER_WEEK);
+
+    const WEEKS_PER_YEAR: u64 = 52;
+    println!("{} weeks in a year", WEEKS_PER_YEAR);
+
+    const USER_LIMIT:i32 = 100;
+    const PI:f32 = 3.14;
+
+    println!("user limit is {}",USER_LIMIT);
+    println!("pi value is {}",PI);  
+}