Java Treeset Pro

Get Synchronized Set from Java Tree Set

import java.util.TreeSet;

import java.util.Collections;

import java.util.Set;

public class GetSynchronizedSetFromTreeSetExample

{

public static void main(String[] args)

{

TreeSet treeSet = new TreeSet(); 

Set set = Collections.synchronizedSet(treeSet);

    }

}

Iterate Over Unmodifiable Collection

import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.Iterator;

import java.util.List;

public class UnmodifiableCollection

{

public static void main(String args[])

{

List list = new ArrayList();

list.add("This");

list.add("is");

list.add("Unmodifiable Collection");

System.out.println("Element added to list: " + list.get(2));

Collection immutableCol = Collections.unmodifiableCollection(list);

Iterator iterator = immutableCol.iterator();

while(iterator.hasNext())

{

System.out.println(iterator.next());

      }

   }

}

Perform Binary Search on Java Array List

import java.util.ArrayList;

import java.util.Collections;

public class BinarySearchArrayListExample

{

 public static void main(String[] args)

{

ArrayList arrayList = new ArrayList(); arrayList.add("1");

arrayList.add("4");

arrayList.add("2");

arrayList.add("5");

arrayList.add("3");

Collections.sort(arrayList);

System.out.println("Sorted ArrayList contains : " + arrayList);

int index = Collections.binarySearch(arrayList,"4");

System.out.println("Element found at : " + index);

   }

}

Perform Binary Search on Java Vector

import java.util.Vector;

import java.util.Collections;

public class BinarySearchVectorExample

 {

public static void main(String[] args)

{

Vector v = new Vector();

v.add("A");

v.add("B");

v.add("D");

v.add("E");

v.add("F");

Collections.sort(v);

System.out.println("Sorted Vector contains : " + v);

int index = Collections.binarySearch(v,"D");

System.out.println("Element found at : " + index);

   }

}

Replace All Elements Of Java Array List

import java.util.ArrayList;

import java.util.Collections;

public class ReplaceAllElementsOfArrayListExample

{

 public static void main(String[] args)

{

ArrayList arrayList = new ArrayList();

arrayList.add("A");

arrayList.add("B");

arrayList.add("D");

System.out.println("Before replacement, ArrayList contains : " + arrayList);

Collections.fill(arrayList,"Replaced");

System.out.println("After replacement, ArrayList contains : " + arrayList);

   }

}

Replace All Elements Of Java Vector

import java.util.Vector;

import java.util.Collections;

public class ReplaceAllElementsOfVectorExample

{

public static void main(String[] args)

 {

Vector v = new Vector();

v.add("A");

v.add("B");

v.add("D");

System.out.println("Before replacement, Vector contains : " + v);

Collections.fill(v,"REPLACED");

System.out.println("After replacement, Vector contains : " + v);

  }

}

Replace all occurrences of specified element of Java Array List

import java.util.ArrayList;

import java.util.Collections;

public class ReplaceAllArrayListExample

{

public static void main(String[] args)

{

ArrayList arrayList = new ArrayList();

arrayList.add("A");

arrayList.add("B");

arrayList.add("A");

arrayList.add("C");

arrayList.add("D");

System.out.println("ArrayList Contains : " + arrayList);

Collections.replaceAll(arrayList, "A","Replace All");

System.out.println("After Replace All, ArrayList Contains : " + arrayList);

   }

}

Replace all occurrences of specified element of Java Vector

import java.util.Vector;

import java.util.Collections;

public class ReplaceAllVectorExample

{

public static void main(String[] args)

{

Vector v = new Vector();

v.add("A");

v.add("B");

v.add("A");

v.add("C");

v.add("D");

System.out.println("Vector Contains : " + v);

Collections.replaceAll(v, "A","Replace All");

System.out.println("After Replace All, Vector Contains : " + v);

    }

}

Reverse order of all elements of Java Array List

import java.util.ArrayList;

import java.util.Collections;

public class ReverseOrderArrayListExample

{

 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");

System.out.println("Before Reverse Order, ArrayList Contains : " + arrayList);

Collections.reverse(arrayList);

System.out.println("After Reverse Order, ArrayList Contains : " + arrayList);

    }

}

Reverse order of all elements of Java Vector

import java.util.Vector;

import java.util.Collections;

public class ReverseOrderVectorExample

{

public static void main(String[] args)

{

Vector v = new Vector();

v.add("A");

v.add("B");

v.add("C");

v.add("D");

v.add("E");

System.out.println("Before Reverse Order, Vector Contains : " + v);

Collections.reverse(v);  

System.out.println("After Reverse Order, Vector Contains : " + v);

    }

}

Shuffle elements of Java Array List

import java.util.ArrayList;

import java.util.Collections;

public class ShuffleElementsOfArrayListExample

{

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");

System.out.println("Before shuffling, ArrayList contains : " + arrayList);

Collections.shuffle(arrayList);

System.out.println("After shuffling, ArrayList contains : " + arrayList);

   }

}