ascending order or not in ascending order

[hawkesey]

Hello

I am fairly new to java and i am currently one of the modules that i am studding at university. I need to create a program that will read in a string and then work out if it is in ascending order or not in ascending order and return true or false.

Below is the brief







Thanks and any help will be much appreciated

[doWhile]

And....What have you tried?

[hawkesey]

And....What have you tried?

I looked at using the charAt method like i did in another exercise to look at the individual characters in the string but i this did not work. I was looking at one of the examples that the lecturer gives and i think that i will need to use an array?

Thanks

[Sierra]

Yes you need probably to use arrays - you won't get more until you actually present your code, so we can see what you actually did and where you are having problems. Then people will help you out! Looking at things will not write your assignment...

[JosAH]

You don't need arrays; all you need is a boolean expression for a String s: s.charAt(i) <= s.charAt(i+1) that needs to be true for all applicable values of i to be in ascending order.

kind regards,

Jos

[hawkesey]

You don't need arrays; all you need is a boolean expression for a String s: s.charAt(i) <= s.charAt(i+1) that needs to be true for all applicable values of i to be in ascending order.

kind regards,

Jos

ok thank you i will look at this. i have been thinking about using an array but could not get it right. i will try you suggestion

Thanks

[hawkesey]

You don't need arrays; all you need is a boolean expression for a String s: s.charAt(i) <= s.charAt(i+1) that needs to be true for all applicable values of i to be in ascending order.

kind regards,

Jos

public class Main 
{
  public static void Main (String args[])
        
   {
     
            System.out.println("Enter phrase");
            String p = BIO.getString(); 
         
            while (! p.equals("END"))
            
           { 
                boolean inorder = true;   

                while ( inorder )                 
                {
                      inorder=false;             

                    for (int i=0; i<p.length(); i=i+1)
                        {     
                            
                            if ((p.charAt(i) <= p.charAt(i+1)))
                            {
                           
                                inorder = true;            
         
                            }   

                              
                          }
                          
                   if (inorder=true)
                {
                    System.out.printf("%s letters in ascending order,p");
                }
                          System.out.println("Enter phrase");
                          p = BIO.getString(); 
                          
                }  
           }    
                
  }
}

This is what i have done so far it is has been done quick to get some of my thoughts down.

THanks

[JosAH]

There are at least three mistakes in that code:

1) check the terminating condition of that for-loop;
2) if that expression happens to be true once, the characters don't need all to be in ascending order;
3) check that assignment in line #32.

kind regards,

Jos