<commit_before>package ua.qa.training.sandbox;

public class MyFirstProgram {

  public static void main(String[] args) {
    System.out.println("Hello, world!");
  }

}
<commit_msg>Added several functions<commit_after>package ua.qa.training.sandbox;

public class MyFirstProgram {

  public static void main(String[] args) {
    hello("world");
    hello("user");
    hello("Alena");

    double l=5;
    System.out.println("площадь квадрата со стороной " + l + " = " + area(l) );

    double a = 4;
    double b = 6;
    System.out.println("площадь прямоугольника со сторонами " + a + " и " + b + " = " + area(a, b) );



  }

  public static void hello(String somebody){ //аргумент, параметр метода
    System.out.println("Hello," + somebody + "!");
  }

  public static double area (double len){
    return len*len;
  }

  public static double area (double a, double b){
    return a*b;
  }

}

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