Java Bubble Sort and Array List in descending order

Simple For loop

public class SimpleForLoop

{

public static void main(String[] args)

{

for( ; ; )

for(int index = 0; index < 5 ; index++)

System.out.println("Index is : " + index);

for(int index=0; index < 5 ; index++)

{

System.out.println("Index is : " + index);

index++;

    }

  }

}

Sort Java Vector in descending order using comparator

import java.util.Vector;

import java.util.Collections;

import java.util.Comparator;

public class SortVectorInDescendingOrder

{

public static void main(String[] args)

          {

Vector v = new Vector();

v.add("1");

v.add("2");

v.add("3");

v.add("4");

v.add("5");

Comparator comparator = Collections.reverseOrder();

                    System.out.println("Before sorting Vector in descending order : " + v);

Collections.sort(v,comparator);

System.out.println("After sorting Vector in descending order : " + v);

   }

}

Sort Java Array List in descending order using comparator

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

public class SortArrayListInDescendingOrder

          {

public static void main(String[] args)

{

ArrayList arrayList = new ArrayList();

arrayList.add("A");

arrayList.add("B");

arrayList.add("C");

arrayList.add("D");

arrayList.add("E");

Comparator comparator = Collections.reverseOrder();

System.out.println("Before sorting ArrayList in descending order : "

+ arrayList);

Collections.sort(arrayList,comparator);

System.out.println("After sorting ArrayList in descending order : "

+ arrayList);

  }

}

Java Bubble Sort

public class BubbleSort

{

public static void main(String[] args)

{

int intArray[] = new int[]{5,90,35,45,150,3};

System.out.println("Array Before Bubble Sort");

for(int i=0; i < intArray.length; i++)

{

System.out.print(intArray[i] + " ");

}

bubbleSort(intArray);

System.out.println("");

System.out.println("Array After Bubble Sort");

for(int i=0; i < intArray.length; i++)

{

System.out.print(intArray[i] + " ");

  }

}

private static void bubbleSort(int[] intArray)

{

int n = intArray.length;

int temp = 0;

for(int i=0; i < n; i++)

{

for(int j=1; j < (n-i); j++)

{

                                

if(intArray[j-1] > intArray[j])

{

temp = intArray[j-1];

intArray[j-1] = intArray[j];

intArray[j] = temp;

             }

         }

      }

   }

}