constructor call java code example

Example 1: calling this in constructor java

In Java another constructor of the same class can be called from a
  constructor via this().
 Note however that this has to be on the first line.

Example 2: constructor in java

public class ConstructorDemo
{
   int a;
   ConstructorDemo()
   {
      a = 26;
   }
   public static void main(String[] args)
   {
      ConstructorDemo obj = new ConstructorDemo();
      System.out.println(obj.a);
   }
}