Question

How to remove elements bigger than N from ArrayList in Java

Answer 1

import java.util.*;

public class MyClass {
    public static <T> void remove(ArrayList<T> al, int n) { 
        Iterator it = al.iterator(); 
        while (it.hasNext()) { 
            int val = (Integer)it.next(); 
            if (val > n) 
                it.remove(); 
        } 
    } 
    public static void main(String args[]) {
        ArrayList<Integer> al = new ArrayList<>(Arrays.asList(5, 3, 8, 5, 0, 1, 99, 7, 4, 2)); 
 
        System.out.println(al); 
         
        int N = 5; 
        
        remove(al, N);

        System.out.println(al); 
  
    }
}
    
    
    
    
/*
run:
    
[5, 3, 8, 5, 0, 1, 99, 7, 4, 2]
[5, 3, 5, 0, 1, 4, 2]

*/

 

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