QUESTION 42

QUESTION 42 
Click the Exhibit button. 
 
class Foo {
     private int x;
     public Foo( int x ){ this.x = x;}
     public void setX( int x ) { this.x = x; }
     public int getX(){ return x;} } 
 
public class Gamma {
         static Foo fooBar(Foo foo) {
         foo = new Foo(100);
         return foo;
     }
          public static void main(String[] args) {
         Foo foo = new Foo( 300 );
         System.out.println( foo.getX() + "-");
                  Foo fooFoo = fooBar(foo);
         System.out.println(foo.getX() + "-");
         System.out.println(fooFoo.getX() + "-");
                  foo = fooBar( fooFoo);
         System.out.println( foo.getX() + "-");
         System.out.println(fooFoo.getX());
     }
 } 
 
What is the output of the program shown in the exhibit? 
 
 
 
A. 300-100-100-100-100 
B. 300-300-100-100-100 
C. 300-300-300-100-100 
D. 300-300-300-300-100 
Solution : B