Interested to Buy Any Domain ? << Click Here >> for more details...
Q) I have a ArrayList object, in that object i have added 5
integer values, 5 float values, 5 string values. Now
question is how can delete particular type of data ( i.e all
int values or all float values or string values) in that
list object at a time?
- 3 Answers
- 8395 Views
- Aricent, I also Faced
- E-Mail Answers
Answer Posted / srivatsava
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);
}
}
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
What is Java Package and which package is imported by default?
Difference between final and effectively final ? Why is effectively final even required ?
What function extracts specified characters from a string?
How to declare an arraylist in java?
can java object be locked down for exclusive use by a given thread? Or what happens when a thread cannot acquire a lock on an object? : Java thread
Is vector thread safe in java?
How many unicode characters are there?
What is the purpose of checked and unchecked exceptions in JAVA?
What do you understand by soft reference?
Why there are some null interface in java? What does it mean?
What is the concatenation operator in java?
Can we serialize static variables in java?
How do you declare a variable?
Explain the difference between serializable and externalizable in java?
How does queue work in java?
