this is what i have Code: import java.util.Scanner; import java.util.Random; public class Assignment4 { /* merle ledbetter * MWF 1255 * assignment 4 */ public static void main(String[] args){ Scanner s= new Scanner(System.in); int tries= 0; printMenu(); char character = s.next().charAt(0); while(character != 'q'){ switch(character){ case 'a': System.out.println("you have selected Grid of Characters."); System.out.println("What is number you want to generate? [0 to 500000000]"); int number= s.nextInt(); while((number > 500000000)||(number< 0)){ System.out.println("the number is not within the range 0 to 500000000 try again"); number= s.nextInt(); } Random generator = new Random(); int rand = generator.nextInt(number); System.out.println(rand); while(rand != number){ tries++; rand= generator.nextInt(number); } System.out.println(tries); System.out.println(rand); System.out.println(number); break; case 'b': case'B': //blah blah blah balh // blah blah blah blah break; case 'c': case'C': // blah blah blah blah // blah blah blah break; case'd': case'D': // blah blah blah // blah blah blah break; case'e': case'E': // blah blah blah // blah blah blah break; case'q': case'Q': // blah blah blah // blah blah blah break; default: System.out.println("invalid selection try again"); break; } } } public static void printMenu(){ //opening prompt System.out.println("Welcome to the random task machine. Please make a selection." + "\n" +"-------------------------"); System.out.println("A. Grid of Characters"); System.out.println("B. How Many Tries"); System.out.println("C. Triangle of Characters"); System.out.println("D. Even/Odd Printing"); System.out.println("E. Palindrome Checker"); System.out.println("Q. Quit"); i cannot get the case a to work and i need to program to iterate until q is selected.
see the changes in the code Code: import java.util.Scanner; import java.util.Random; public class Assignment4 { /* merle ledbetter * MWF 1255 * assignment 4 */ public static void main(String[] args){ Scanner s= new Scanner(System.in); char character = '1'; while(character != 'q'){ int tries= 0; printMenu(); character=s.next().charAt(0); switch(character){ case 'a':case 'A': System.out.println("you have selected Grid of Characters."); System.out.println("What is number you want to generate? [0 to 500000000]"); int number= s.nextInt(); while((number > 500000000)||(number< 0)){ System.out.println("the number is not within the range 0 to 500000000 try again"); number= s.nextInt(); } Random generator = new Random(); int rand = -1; while(rand != number){ tries++; rand= 1+generator.nextInt(number); } System.out.println("total tries="+tries); System.out.println("rand="+rand); System.out.println("number="+number); break; case 'b': case'B': //blah blah blah balh // blah blah blah blah break; case 'c': case'C': // blah blah blah blah // blah blah blah break; case'd': case'D': // blah blah blah // blah blah blah break; case'e': case'E': // blah blah blah // blah blah blah break; case'q': case'Q': // blah blah blah // blah blah blah break; default: System.out.println("invalid selection try again"); break; } } } public static void printMenu(){ //opening prompt System.out.println("Welcome to the random task machine. Please make a selection." + "\n" +"-------------------------"); System.out.println("A. Grid of Characters"); System.out.println("B. How Many Tries"); System.out.println("C. Triangle of Characters"); System.out.println("D. Even/Odd Printing"); System.out.println("E. Palindrome Checker"); System.out.println("Q. Quit"); } }