Week1Mock1APCSAMCQ4

class Main {
    
    
    
    public static void swap(String a1, String a2)
    {
        String hold = a1;
        a1 = a2;
        a2 = hold;
    }
    
    
    public static void main(String[] args) {
        
        // Harbor, Week 1, Mock 1, PR_PracticeTest_1.pdf
        
        // AP CS A 
        
        // Page _____ 
        
        String animal1 = "elephant";
        String animal2 = "lion"; 
        swap(animal1, animal2);
        animal1.toUpperCase();
        animal2.toLowerCase();
        System.out.println(animal1 + " " + animal2);
        
        // Output: elephant lion 
        
    }
}