title: Usage of explicit constructor invocation
body: <p>I am practicing 'this' keyword in constructors. I came to know 'this' will help to invoke constructor explicitly. But what is its use in real time.</p>
  
  <p>Explicit Constructor Invocation.</p>
  
  <pre><code>class JBT {
  
      JBT() {
          this("JBT");
          System.out.println("Inside Constructor without parameter");
      }
  
      JBT(String str) {
          System.out
                  .println("Inside Constructor with String parameter as " + str);
      }
  
      public static void main(String[] args) {
          JBT obj = new JBT();
      }
  }
  </code></pre>