how do constructors work in java code example

Example 1: how to create a constructor in java

class Other{
    public Other(String message){
        System.out.println(message);
    }
}

class scratch{
    public static void main(String[] args) {
        Other method = new Other("Hey");
        //prints Hey to the console
    }
}

Example 2: java constructor

class Huso {
  public Huso() {
  	//constructor code about a huso
  }
}

Example 3: where to use constructors in framework java

In my framework Our BasePage class 
have a constructor  which takes a 
WebDriver object to initialize
a WebDriverWait object. The constructor will
also be responsible to initialize 
WebElements via PageFactory.

Example 4: 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);
   }
}