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Thread: Sorting/Lexicographic =)

  1. #1
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    Default Sorting/Lexicographic =)

    Need help =)..

    Question: Write a program that reads in four strings and prints the lexicographically smallest and largest one:
    enter four strings:
    Charles
    Alex
    Delta
    Baker

    Output: The Lexicographic minimum is Alex.
    The Lexicographic maximum is Delta.

    //project
     
    import java.util.Arrays;
    import java.io.*;
     
     
     
    public class testing {
        public static void main(String[] args)throws IOException {
        	BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
    		String name1,name2,name3,name4;
     
    		System.out.println("Enter 1st: ");
    		name1 = br.readLine();
    		System.out.println("Enter 2st: ");
    		name2 = br.readLine();
    		System.out.println("Enter 3st: ");
    		name3 = br.readLine();
    		System.out.println("Enter 4st: ");
    		name4 = br.readLine();
     
            String[] names = {name1,name2,name3,name4};
            Arrays.sort(names);
            System.out.println(Arrays.toString(names));
     
        }
    }

    my program only sort the names.. can someone help me or give me a hint on how can i give the output(" The Lexicographic minimum is Alex. The Lexicographic maximum is Delta.")

    because i dont have any idea on how can i pick the minimum and maximum.. i dont know what will i do to my first program.. help me T_T

    thanks in advance =)
    Last edited by jcs990; March 11th, 2010 at 07:53 AM. Reason: [code][/code]

  2. #2
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    Default Re: Sorting/Lexicographic =)

    *bump* ..

    need someone to help me ..thxx

  3. #3
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: Sorting/Lexicographic =)

    Please don't bumnp, but they will be the first and last elements in the array once its sorted lol
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

  4. #4
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    Default Re: Sorting/Lexicographic =)

    Quote Originally Posted by Freaky Chris View Post
    Please don't bumnp, but they will be the first and last elements in the array once its sorted lol
    hi Sir Chris... sorry for the bump... i know it will be the first and last elements.. but i want to know how can i print the output of "The Lexicographic minimum is Alex.The Lexicographic maximum is Delta." .. i need the specific output..

    can u help me, how can i get the 1st and last item in the array.. after it was sorted..
    because i dont have any idea...

    please help me ..

    thank u Sir in advance

  5. #5
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    Default Re: Sorting/Lexicographic =)

    You can reference elements in the array using [] and an index.

    String[] someStrings = {"hello" , "world", "today", "is", "a", "sunny", "day"};
    System.out.println("The first string in the array is " + someStrings[0]);
    System.out.println("Teh last string in the array is " + someStrings[someStrings.length - 1]);

  6. The Following User Says Thank You to helloworld922 For This Useful Post:

    jcs990 (March 12th, 2010)

  7. #6
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    Default Re: Sorting/Lexicographic =)

    Quote Originally Posted by helloworld922 View Post
    You can reference elements in the array using [] and an index.

    String[] someStrings = {"hello" , "world", "today", "is", "a", "sunny", "day"};
    System.out.println("The first string in the array is " + someStrings[0]);
    System.out.println("Teh last string in the array is " + someStrings[someStrings.length - 1]);

    @Sir helloworld922.. thank you for helping me .... i greatly appreciate it

    More power to you ^_^


    @Sir Freaky Chris... thank you Sir GodBless..

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