//StringTests.java



import java.lang.*;

public class StringTests{


public StringTests(String array1[]){

/**This method breaks the passed array into two separate 
 * items. It then converts the first string to an integer
 * using parseInt() method and then assigns the 
 * second string to a new array. The last stage passes the 
 *  new int and array to the switch statement
 **/
        System.out.println();
        System.out.println("String tests program ");
        System.out.println("By Garth Bruen.");

        int x = Integer.parseInt(array1[0]);
        //Changes first index to an integer
        String words = array1[1];
        //puts second index item into a variable
        String array2[] = new String[1];
        //Creates new array
        array2[0] = words;
        //put string variable into new array
        switchStatement(x, array2);
        //passes new integer and array to switch statment
        }


public void switchStatement(int n, String array2[]){
        if(n <= 3){  /**If checks to see if the integer value
                     *is valid for the switch statement
                     **/
        int j = 0;
        while(j < 2){
        switch(n) {
        case 0:                
               System.out.println(n+" "+array2[0]); break;
        case 1:         
               showLength(array2); break;                               
        case 2:               
               caseCheck(array2); break;
        case 3:            
               reverseString(array2); break;
        default:
               System.out.println("You must enter a number and a string"); break;
        }
        j = j + 1;
        }
        }
        else
           System.out.println("You must enter a number between 1 and 3");
            }



public void reverseString(String array2[]){

/** This method prints the string backwards by using
* two if loops and printing from the array
**/

        System.out.println();
        System.out.print("This is your string backwards: ");
        for(int r = array2.length-1; r >= 0; r--){
                for(int rr = array2[r].length()-1; rr>=0; rr--){
                        System.out.print(array2[r].charAt(rr));
                        }
                System.out.println(" ");
                }
         System.out.println();
         return;
         }


public void showLength(String array2[]){

/**This method checks the length of the string
*using length()
**/

        System.out.println();

        System.out.println("The length of your string is "+array2[0].length());
        System.out.println();
        return;}

public void caseCheck(String args1[]){
	String newWord;
        newWord = args1[0];   //asigns the string to a new variable
        String uCase, lCase;  //Creates test variables
        uCase = newWord;
        lCase = newWord;

        uCase = uCase.toUpperCase();  //Changes the cases
        lCase = lCase.toLowerCase();  //of the test variables

/**The next if/else/if/else checks to see if the the string is
 *upper case or lower case by comparing them to the original string
 *with euqals() method
 **/

        if(newWord.equals(uCase)){
                System.out.println();
                System.out.println("Strings are upper case: "+uCase+" "+newWord);}
                
        else
                if(newWord.equals(lCase)){
                        System.out.println();
                        System.out.println("Strings are lower case: "+lCase+" "+newWord);}
                else {System.out.println();
                      System.out.println("String is multiple case");}
                }
	


public static void main(String args[]){
        
        StringTests st = new StringTests(args);//passes the command line string to the program
        
        }

}