public class Test3{
	
	static LinkedList bob = new LinkedList();
	
	public boolean contains(String s, char c){
		boolean truthitude = false;
		
		if(s.charAt(0) == c){
			return true;
		}
		
		if(s.length() > 1){
			truthitude = contains(s.substring(1),c);
		}
		
		return truthitude;
	}
	
	public String sameWithout(String s, char c){
		String string = s;
		
		if(s.length() > 1){
			string = s.charAt(0) + sameWithout(s.substring(1),c);
		}
		
		if(s.charAt(0) == c && s.length() == 1){
			string = "";
		}
		
		else if(s.charAt(0) == c){
			string = s.substring(1);
		}
		
		return string;
			
	}
			
	public boolean isAll(String s, char c){
		boolean truth = true;
		
		if(s.length() > 1){
			truth = isAll(s.substring(1),c);
		}
		
		if(!truth){
			return false;
		}
		
		if(s.length() < 1){
			return true;
		}
		
		if(s.charAt(0) == c){
			return true;
		}
		else{
			return false;
		}
	}
	
	public String replaceOccurancesOf(String s, char from, char to){
		String string = s;
		
		if(s == ""){
			return "";
		}
		
		if(s.length() > 1){
			string = s.charAt(0) + replaceOccurancesOf(s.substring(1),from,to);
		}
		
		if(s.charAt(0) == from){
			string = to + string.substring(1);
		}
		return string;
	}
	
	public int firstIndexOf(String s, char c){
		int index = -1;
		
		if(s == ""){
			return index;
		}
		
		if(s.charAt(0) == c){
			return 0;
		}
		
		if(s.length() > 1){
			index = firstIndexOf(s.substring(1),c);
		}
		if(index != -1){
			index++;
		}
		return (index);
	}
	
	public int countOccurancesOf(String s, char c){
		int count = 0;
		
		if(s == ""){
			return 0;
		}
		
		if(s.length() > 1){
			count += countOccurancesOf(s.substring(1),c);
		}
		
		if(s.charAt(0) == c){
			count++;		
		}
		return count;
	}
	

				
	
	public static void main(String args[]){
		Test3 test = new Test3();
		
		//test contains
		System.out.println(test.contains("abc",'a'));
		System.out.println(test.contains("ab c",'b'));
		System.out.println(test.contains("a-bc",'c'));
		
		System.out.println(test.contains("abc",'d'));
		
		
		//test sameWithout
		System.out.println();
		System.out.println(test.sameWithout("abc",'a'));
		System.out.println(test.sameWithout("abc",'b'));
		System.out.println(test.sameWithout("abc",'c'));
		
		//test isAll
		System.out.println();
		System.out.println(test.isAll("aaa",'b'));
		System.out.println(test.isAll("aaa",'a'));
		System.out.println(test.isAll("aba",'b'));
		System.out.println(test.isAll("",'a'));
		
		//test replaceOcc
		System.out.println();
		System.out.println(test.replaceOccurancesOf("aabaabaa",'b','a'));
		System.out.println(test.replaceOccurancesOf("bbbbbbbb",'b','a'));
		System.out.println(test.replaceOccurancesOf("",'b','a'));
		
		//test firstIndexOf
		System.out.println();
		System.out.println(test.firstIndexOf("",'a'));
		System.out.println(test.firstIndexOf("aaaaaa",'b'));
		System.out.println(test.firstIndexOf("babababa",'a'));
		System.out.println(test.firstIndexOf("babababa",'b'));
		System.out.println(test.firstIndexOf("aaaaaaab",'b'));
		System.out.println(test.firstIndexOf("aaaaaaba",'b'));
		
		//test counters
		System.out.println();
		System.out.println(test.countOccurancesOf("",'a'));
		System.out.println(test.countOccurancesOf("aaa",'a'));
		System.out.println(test.countOccurancesOf("aba",'b'));
		
		//which is valid
		System.out.println();
		//can go down but not up
		//Dog d=new Animal();

		Animal a=new Dog();
	
		Cat c=new Cat();

		//Dog d=new Cat();

		a=new Dog();
	   	c=new Cat();
  	   	a=c;
		
		System.out.print("Expect Yummy: \n Actually: ");
		Dog d=new Dog();
	   	d.eat();
	   	
	   	a=new Cat();
	   ((Cat)a).nap();
	   	
	   	System.out.print("Expect I am Playing: \n Actually: ");
	   	a=new Dog();
	    ((Dog)a).play();
	    /*	    
	    a=new Dog();
	    ((Cat)a).speak();
	    */
	    
	    bob.addToFront(new Integer(5));
	    bob.addToFront(new Integer(6));
	    
	    bob.addToFront(new Integer(7));
	    
	    bob.addToFront(new Integer(9));
	    bob.addToFront(new String("bob"));
	    
	    System.out.println();
	    d = new Dog("Fido");
	    c = new Cat("Fluffy");
	    a = new Animal();
	    
	    System.out.println(d);
	    System.out.println(d.animalCount);
	    
	    System.out.println(c);
	    System.out.println(c.animalCount);
	    
	    System.out.println(a);
	    System.out.println(a.animalCount);
	    
	  	a=new Cat();
			
	}
}