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Thread: please help me in my assignment :(

  1. #1
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    Default please help me in my assignment :(

    Here's the program: Write a class Sort. that allows you to input three string names and output at ascending order...
    here's my code...i dont know what's wrong with this..please help me guys..im just a beginner at all..im still learning...

    import java.util.*;
     
    public class Sort {
     
    	public static void main (String []args){
    	Scanner console = new Scanner(System.in);
     
    	String name1, name2, name3;
     
    	System.out.println("Enter name1: ");
    	name1= console.nextLine();
    	System.out.println("Enter name2: ");
    	name2= console.nextLine();
    	System.out.println("Enter name3: ");
    	name3= console.nextLine();
     
    	int x = name1.compareTo(name2);
    	int y = name2.compareTo(name3);
    	int z= name3.compareTo(name2);
     
     
    	if (x< 0)
     
    		System.out.println(name1);
    			{
    				if(x> 0)
    				System.out.println(name2);
    			}
     
    	if (y< 0)
    		System.out.println(name2);
    			{
    			if (y>0)
    			System.out.println(name3);
    			}	
    	if (z < 0 )
    		System.out.println(name3);
    			{
    			if (z< 0 )
    			System.out.println(name1);
     
    			}
     
    		}
    }
    Last edited by helloworld922; May 15th, 2010 at 10:29 AM.


  2. #2
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    Default Re: please help me in my assignment :(

    whats the output for that piece of code?

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    Default Re: please help me in my assignment :(

    Quote Originally Posted by asdfg View Post
    ..please help me guys..im just a beginner at all..im still learning...
    The best advice I can give you is to work out how to use the results of the compareTo methods by hand, on paper, in English (or your native language) before writing any code. Once you know exactly what you have to do, writing the code is just translating it into Java.

  4. #4
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    Default Re: please help me in my assignment :(

    You could always do it like this:

    import java.util.*;
     
    public class Sort {
     
    	public static void main(String[] args) {
    		Scanner console = new Scanner(System.in);
     
    		String[] names = new String[3];
     
    		System.out.println("Enter name1: ");
    		names[0] = console.nextLine();
    		System.out.println("Enter name2: ");
    		names[1] = console.nextLine();
    		System.out.println("Enter name3: ");
    		names[2] = console.nextLine();
     
    		Arrays.sort(names);
     
    		for (int a = 0; a < names.length; a++) {
    			System.out.println(names[a]);
    		}
     
    	}
    }
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    Default Re: please help me in my assignment :(

    Quote Originally Posted by javanub:( View Post
    whats the output for that piece of code?
    output would be:
    if the user enter: anne, annie, ann
    then it will display:
    ann
    anne
    annie

  6. #6
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    Default Re: please help me in my assignment :(

    Quote Originally Posted by JavaPF View Post
    You could always do it like this:

    import java.util.*;
     
    public class Sort {
     
    	public static void main(String[] args) {
    		Scanner console = new Scanner(System.in);
     
    		String[] names = new String[3];
     
    		System.out.println("Enter name1: ");
    		names[0] = console.nextLine();
    		System.out.println("Enter name2: ");
    		names[1] = console.nextLine();
    		System.out.println("Enter name3: ");
    		names[2] = console.nextLine();
     
    		Arrays.sort(names);
     
    		for (int a = 0; a < names.length; a++) {
    			System.out.println(names[a]);
    		}
     
    	}
    }

    thanks so much this is a great help

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