Partially match strings in case of List.contains(String)

Question

I have a List

List list = new ArrayList();
list.add(\"ABCD\");
list.add(\"EFGH\");
list.add(\"IJ KL\")         


        

Answer 1

This is not a direct answer to the given problem. But I guess this answer will help someone to compare partially both given and the elements in a list using Apache Commons Collections.

final Equator equator = new Equator() {
        @Override
        public boolean equate(String o1, String o2) {
            final int i1 = o1.lastIndexOf(":");
            final int i2 = o2.lastIndexOf(":");
            return o1.substring(0, i1).equals(o2.substring(0, i2));
        }

        @Override
        public int hash(String o) {
            final int i1 = o.lastIndexOf(":");
            return o.substring(0, i1).hashCode();
        }
    };
    final List list = Lists.newArrayList("a1:v1", "a2:v2");
    System.out.println(IteratorUtils.matchesAny(list.iterator(), new EqualPredicate("a2:v1", equator)));