Loopier.java

/*==================================================
  class Loopier
  An exercise in basic array work, iterative and recursive repetition.
  ==================================================*/

public class Loopier {
    

    /*==================================================
      int freqFor(int[],int) -- uses FOR loop to search int array for target
      post: returns num of times target occurs in array
      ==================================================*/
    public static int freqFor ( int[] a, int target ) {

	// *** YOUR IMPLEMENTATION HERE ***

	return -1; //placeholder to get past compiler
    }


    /*==================================================
      int freqForEach(int[],int) -- uses FOREACH loop to search int array 
      post: returns num of times target occurs in array
      ==================================================*/
    public static int freqForEach ( int[] a, int target ) {

	// *** YOUR IMPLEMENTATION HERE ***

	return -1; //placeholder to get past compiler
    }

    /*==================================================
      int freqWhile(int[],int) -- uses WHILE loop to search int array 
      post: returns num of times target occurs in array
      ==================================================*/
    public static int freqWhile ( int[] a, int target ) {

	// *** YOUR IMPLEMENTATION HERE ***

	return -1; //placeholder to get past compiler
    }


    /*==================================================
      int linSearchR(int[],int) -- recursively searches array of ints for target
      post: returns index of first occurrence of target, or
            returns -1 if target not found
      ==================================================*/
    //hint: you may want to initialize a var outside the method...    
    public static int linSearchR ( int[] a, int target ) {

	// *** YOUR IMPLEMENTATION HERE ***

	return -1; //placeholder to get past compiler
    }

    
    /*==================================================
      int linSearch(String[],String) -- searches an array of Strings for target
      post: returns index of first occurrence of target, or
            returns -1 if target not found
      ==================================================*/
    public static int linSearch ( String[] a, String target ) {

	// *** YOUR IMPLEMENTATION HERE ***

	return -1; //placeholder to get past compiler
    }


    //main method for testing
    public static void main ( String[] args ) {

	//TIP: kill & yank the top comment bar down one section 
	//     at a time to test your methods as they develop.
	/*==================================================

	System.out.println("\nNow testing linSearchR on int array...");
	//declare and initialize an array of ints
	int[] x = { 2, 4, 6, 8, 6, 42 };

	//search for 6 in array x
	System.out.println( linSearchR(x,6) );

	//search for 43 in array x
	System.out.println( linSearchR(x,43) );

	System.out.println("\nNow testing linSearch on String array...");
	//declare and initialize an array of Strings
	String[] y = { "kiwi", "watermelon", "orange", "apple", 
		       "peach", "watermelon" };

	//search for "watermelon" in array y
	System.out.println( linSearch(y,"watermelon") );

	//search for "lychee" in array y
	System.out.println( linSearch(y,"lychee") );


	//declare and initialize an array of ints
	int[] z = { 1, 5, 3, 5, 1, 5 };

	//compute frequency of 5 in array z
	int q = 5;
	System.out.println( freqFor ( z, q ) );
	System.out.println( freqForEach ( z, q ) );
	System.out.println( freqWhile ( z, q ) );

	//compute frequency of 2 in array z
	int r = 2;
	System.out.println( freqFor(z,r) );
	System.out.println( freqForEach(z,r) );
	System.out.println( freqWhile(z,r) );

	==================================================*/
    }//end main()

}//end class Loopier