Assignment and '?' operator


Program to demonstrate basic assignment operator usage                                                                                                                                                                                                                                      

class AssignmentOperator
{
   public static void main(String args[])
   {
      int a;
      a=5;       //Here we are using assignment operator '=' to assign value '5' to variable 'a'
      System.out.println(a);
   }
 }

Output of this program:

5
Program to demonstrate assignment operator assigning a single value to more than one variable in a single statement

class AssignmentOperator2
{
   public static void main(String args[])
   {
      int a,b,c;
      a=b=c=5;    //Here we are using assignment operator '=' to assign value '5' to variables 'a','b' and 'c' in a single statement
      System.out.println(a);
      System.out.println(b);
      System.out.println(c);

   }
 }

5
5
5

Program to demonstrate '?' operator

class QuestionOperator
{
   public static void main(String args[])
   {
      int i=10;

      int k= i<0 ? -i: i;    // i<0 is true then -i after the question mark will be assigned to variable 'k' else value of i will be assigned

      System.out.println("k="+k);

   }
 }

Output of this program:

k=10
Another Program to demonstrate the '?' operator

class QuestionOperator
{
   public static void main(String args[])
   {
      int i=-10;

      int k= i<0 ? -i: i;     // i<0 is true then -i after the question mark will be assigned to variable 'k' else value of i will be assigned

      System.out.println("k="+k);

   }
 }

Output of this program:

k=10
at