Console implements functions for displaying the stated values on the terminal i.e, with print, println, and printf we can post to the display. It is also utilized in reading values from the Console with the function from scala.io.StdIn. It is even helpful in constructing interactive programs.
Let’s discuss it in detail and also lets see some examples related to it.

• println:
  It is utilized in putting down values to the Console and moreover computes a trailing newline. we can pass any types as argument to it.
• Print:
  It is equivalent to println but it does not computes any trailing line. It puts down the data to the beginning of the line.
• printf:
  This is helpful in writing format strings and also places extra arguments.
  Example:
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  // Scala program of print // functions    // Creating an object object GfG {        // Main method     def main(args: Array[String])      {            // Applying console with println         Console.println("GeeksfoGeeks")            // Displays output with no         // trailing lines         print("CS")         print("_portal")            // Used for a newline         println()            // Displays format string         printf("Age = %d", 24)     } }

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  Output:

  GeeksfoGeeks
  CS_portal
  Age = 24
  

  The println and Console.println both are equivalent.

• readLine():
  It is a method in which user gives inputs in the pattern of String from the keyboard.
  Example:
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  // Scala program of readLine() // method    // Creating an object object GfG    { // Main method def main(args: Array[String])     { // Applying a loop while (true) {        // Reads the line from the Console     val result = scala.io.StdIn.readLine()        // Displays the string that is      // given by the user     printf("Enter the String: %s", result)          //prints newline     println()      }    } }

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  Output:

  //giving user defined inputs
  GfG 
  //output by readline
  Enter the String: Gfg 
  //again giving inputs
  Nidhi 
  //output
  Enter the String: Nidhi 
  

  Here, the while loop is infinite in nature and after giving user inputs the variable will contains that (GfG) string and if again we given any input then the variable will contain that (Nidhi) input.