Source Code : Java generic: A situation that creates a bridge method.

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Java generic: A situation that creates a bridge method.

/*
Java 2, v5.0 (Tiger) New Features
by Herbert Schildt
ISBN: 0072258543
Publisher: McGraw-Hill/Osborne, 2004
*/
//  
class Gen<T> {  
  T ob; // declare an object of type T  
    
  // Pass the constructor a reference to   
  // an object of type T.  
  Gen(T o) {  
    ob = o;  
  }  
  
  // Return ob.  
  T getob() {  
    return ob;  
  }  
}  
 
// A subclass of Gen. 
class Gen2 extends Gen<String> { 
 
  Gen2(String o) { 
    super(o); 
  } 
 
  // A String-specific override of getob(). 
  String getob() { 
    System.out.print("You called String getob(): "); 
    return ob; 
  } 
} 
  
// Demonstrate a situation that requires a bridge method. 
public class BridgeDemo {  
  public static void main(String args[]) {  
 
    // Create a Gen2 object for Strings. 
    Gen2 strOb2 = new Gen2("Generics Test");  
 
    System.out.println(strOb2.getob()); 
  }  
}


           
       

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