Formatted Output
Part of the Fundamentals section of Coddy's Rust journey — lesson 36 of 75.
Challenge
BeginnerModify the output so that it will always print a float value with two decimal places. To do it use the {:.2} sign:
let num = 1.5576734;
println!("This is rounded: {:.2}", num);
// Output: This is rounded: 1.56Try it yourself
use std::io;
fn main() {
println!("Calculator App");
let mut input_num1 = String::new();
let mut input_num2 = String::new();
io::stdin().read_line(&mut input_num1).unwrap();
io::stdin().read_line(&mut input_num2).unwrap();
let num1: f64 = input_num1.trim().parse().unwrap();
let num2: f64 = input_num2.trim().parse().unwrap();
let sum = num1 + num2;
let difference = num1 - num2;
let product = num1 * num2;
let quotient = num1 / num2;
println!("Sum: {}", sum);
println!("Difference: {}", difference);
println!("Product: {}", product);
println!("Quotient: {}", quotient);
}All lessons in Fundamentals
4Operators Part 1
Arithmetic OperatorsModulo OperatorArithmetic ShortcutsComparison OperatorsString Comparison5Operators Part 2
Logical Operators Part 1Logical Operators Part 2Recap - Simple LogicLogical Operators Part 3
3Variables Part 2
Type DeclarationNaming ConventionsType InferenceRecap - Initialize VariablesType Casting9Loops
For Over SeriesWhile LoopBreakContinueNested LoopLoop LabelsInfinite LoopRecap - Dynamic Input