Question

I have to sort a string of names in descending order in bubble sort. I tried but it is not working. This is what I have so far:

public static void bubbleSort(Student[] array)
{
    for(int i=(array.length); i>0; i--)
    {    
        for(int j=1; j<(array.length-i); j++) 
        {
            if( array[j].getName().compareTo(array[j+1].getName())<0)    
            {
                Student Temp = array[j];
                array[j] = array[j+1];
                array[j+1] = Temp;
            }    
        }
    }
}

Answer 1

Try this logic

   import java.util.*;

    public class BubbleSort {

   public static void main(String[] args) {
    String l[]={"ABCD" , "XYZ" , "DEF" , "PQR"};
    BubbleSort(l);
    for(int i=0; i<l.length; i++)
    {
        System.out.println(l[i]);
    }
  }

 private static void BubbleSort(String[] array) {
    String t;
    for(int i=0; i<array.length; i++) {
        for(int j=0; j<array.length-1-i; j++) {
        if(array[j].compareTo(array[j+1])>0) {
            t= array[j];
            array[j] = array[j+1];
            array[j+1] = t;
        }
    }
    }
}
   }