java:

Code:

Scanner scanner = new Scanner(System.in);
System.out.println("enter input");
String str1 = scanner.nextLine();
System.out.println("input was: " + str1);


kotlin:

Code:

Scanner scanner_variable = Scanner(System.`in`)
println("enter input")
var s1:String = scanner_variable.nextLine()
println(s1)


python:

Code:

word = input("enter word\n")
print(word)


swift:

Code:

print("Enter your favorite programming language:")
var name = readLine()

print("Your favorite programming language is \(name!).")


Arduino C++

read serial from PC on Arduino

Code:

(input on serial monitor window on PC)

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}

void loop() {
  if (Serial.available() > 0) {
    int msg = Serial.parseInt();
    Serial.println(msg);
  }
}
[/code]