for(int i=0;i<arr.size();i++){
			if(arr.get(i) instanceof Integer)
				arr.remove(i);
		}

import java.util.*;
public class ArrayListDeleteParticularDataTypeExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ArrayListDeleteParticularDataTypeExample obj = new ArrayListDeleteParticularDataTypeExample();
		ArrayList al = new ArrayList();
		al.add(new Integer(1));
		al.add(new Integer(2));
		al.add(new Integer(3));
		al.add("A");
		al.add("B");
		al.add("C");
		al.add(new Float(10.10));
		al.add(new Float(20.20));
		al.add(new Float(30.30));
		System.out.println("ArrayList Size Before - "+al.size());
		System.out.println("ArrayList Values Before- "+al);
		Iterator it = al.iterator();
		while(it.hasNext()){
			
				if(it.next() instanceof String){
					it.remove();
				}
		}
		System.out.println("ArrayList Size After - "+al.size());
		System.out.println("ArrayList Values After - "+al);
	}

}