Java 14b - call by reference

class Lab14b 

{ 

int a,b; 

public static void main(String args[]) 

{ 

Lab14b x=new Lab14b(); 

x.a=17; 

x.b=46; 

System.out.println("a="+x.a+",b="+x.b); change(x); 

System.out.println("A er changing..."); 

System.out.println("a="+x.a+",b="+x.b); 

} 

public static void change(Lab14b A) 

{ 

A.a=46; 

A.b=17; 

} 

}