first steps into rust programming

target/debug/.fingerprint/hello_world-943817d46c044558/bin-test-943817d46c044558

@@ -1 +1 @@
-55aca33b8be45a9e
+6d8524286a203399

target/debug/.fingerprint/hello_world-943817d46c044558/bin-test-943817d46c044558.json

@@ -1 +1 @@
-{"rustc":9749998217168482212,"target":10994546209011070589,"profile":14528549471338536373,"local":{"variant":"MtimeBased","fields":[[1492003710,242703700],[47,109,101,100,105,97,47,119,105,110,95,101,47,67,108,97,114,97,95,68,97,116,101,110,47,101,116,99,47,80,114,111,103,114,97,109,109,105,101,114,117,110,103,47,82,117,115,116,47,115,114,99,47,116,97,114,103,101,116,47,100,101,98,117,103,47,46,102,105,110,103,101,114,112,114,105,110,116,47,104,101,108,108,111,95,119,111,114,108,100,45,57,52,51,56,49,55,100,52,54,99,48,52,52,53,53,56,47,100,101,112,45,98,105,110,45,116,101,115,116,45,57,52,51,56,49,55,100,52,54,99,48,52,52,53,53,56]]},"features":"None","deps":[],"rustflags":[]}
+{"rustc":9749998217168482212,"target":10994546209011070589,"profile":14528549471338536373,"local":{"variant":"MtimeBased","fields":[[1492017954,643537700],[47,109,101,100,105,97,47,119,105,110,95,101,47,67,108,97,114,97,95,68,97,116,101,110,47,101,116,99,47,80,114,111,103,114,97,109,109,105,101,114,117,110,103,47,82,117,115,116,47,115,114,99,47,116,97,114,103,101,116,47,100,101,98,117,103,47,46,102,105,110,103,101,114,112,114,105,110,116,47,104,101,108,108,111,95,119,111,114,108,100,45,57,52,51,56,49,55,100,52,54,99,48,52,52,53,53,56,47,100,101,112,45,98,105,110,45,116,101,115,116,45,57,52,51,56,49,55,100,52,54,99,48,52,52,53,53,56]]},"features":"None","deps":[],"rustflags":[]}

test.rs

@@ -1,9 +1,9 @@
-// my first rust programm
+// play & learning with rust
 // aka "rust playground"
 
 
 // main function
 fn main() {
-    println!("Hello world!"); //print to console -> important: here not a tab, but 4 spaces!
+
 }
 

test2/Cargo.lock

@@ -0,0 +1,4 @@
+[root]
+name = "test2"
+version = "0.1.0"
+

test2/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "test2"
+version = "0.1.0"
+authors = ["clara <clara.mueller@vilera.de>"]
+
+[dependencies]

test2/src/main.rs

@@ -0,0 +1,26 @@
+// another rust programm
+// let's get started ^.^
+
+
+use std::io; // use io library from the standard library
+// rust only uses few things by default ('prelude') -> add your needs!
+
+
+//main function
+fn main() { 
+    println!("guess a number!"); // macro, prints string
+    
+    println!("please input your guess!."); // macro, prints string
+
+    let mut guess = String::new(); // let -> create 'variable bindings'; String -> string type (UTF-8 encoded bit of text); '::' -> associate function; 'new()' -> created empty
+    let foo = 5; // 'foo' is immutable
+    let mut bar = 5; //'bar' is mutable
+    
+    io::stdin().read_line(&mut guess) // calling associated function // without std::io -> written 'std::io::stdin()' //returns handle to standard input
+        // read_line() -> calling method (like associate function, only on parcticular instant of type) an handle
+        // read_line():&mut guess -> passing argument to mutable reference of guess
+        .expect("failed to read line"); // io::Result encodes error handling information // not successful -> panic! with message "failed to read line"
+        
+    println!("you guessed: {}", guess); // print out saved string from STDIN
+    println!("FOO: {} & BAR: {}", foo, bar) // print out string variables
+}

test2/target/debug/.fingerprint/test2-03d6bc0abf1233dd/bin-test2-03d6bc0abf1233dd

@@ -0,0 +1 @@
+ab706db4e0a6cc76

test2/target/debug/.fingerprint/test2-03d6bc0abf1233dd/bin-test2-03d6bc0abf1233dd.json

@@ -0,0 +1 @@
+{"rustc":9749998217168482212,"target":11282531132251368481,"profile":14528549471338536373,"local":{"variant":"MtimeBased","fields":[[1492017977,202731800],[47,109,101,100,105,97,47,119,105,110,95,101,47,67,108,97,114,97,95,68,97,116,101,110,47,101,116,99,47,80,114,111,103,114,97,109,109,105,101,114,117,110,103,47,82,117,115,116,47,115,114,99,47,116,101,115,116,50,47,116,97,114,103,101,116,47,100,101,98,117,103,47,46,102,105,110,103,101,114,112,114,105,110,116,47,116,101,115,116,50,45,48,51,100,54,98,99,48,97,98,102,49,50,51,51,100,100,47,100,101,112,45,98,105,110,45,116,101,115,116,50,45,48,51,100,54,98,99,48,97,98,102,49,50,51,51,100,100]]},"features":"None","deps":[],"rustflags":[]}

test2/target/debug/test2.d

@@ -0,0 +1 @@
+/media/win_e/Clara_Daten/etc/Programmierung/Rust/src/test2/target/debug/test2: /media/win_e/Clara_Daten/etc/Programmierung/Rust/src/test2/src/main.rs