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Program 1
 

class DeclarationsDemo {

  static final double PI = 3.14159;
  static int a = 2;
  
  public static void main (String[] args) {
    System.out.println("pi er " + PI);
   
    double aNumber = 2 * PI;
    int a = 6, b = 5;
  
    System.out.println("aNumber = " + aNumber +
                       " og a = " + a);
  }

}