ArrayList al=new ArrayList(); al.add("a");al.add("b"

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?

Question Posted / anjan singh

3 Answers
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Answer Posted / anjan singh

ArrayList al=new ArrayList();
al.add("a");al.add("b");al.add(1);al.add
(2);al.add(1.1);al.add(2.1);
System.out.println("Before:\n");
System.out.println(al);
for(int i=0;i<al.size();)
{

if(al.get(i) instanceof String)
al.remove(i);
else
i++;

}
System.out.println("After:\n");
System.out.println(al);

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