package com.example.demo.test;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
public class RandomString<T> implements Iterable{
private final List<T> list;
public RandomString(List<T> list) {
this.list = list;
}
@Override
public Iterator iterator() {
return new Iterator() {
@Override
public boolean hasNext() {
return true;
}
@Override
public Object next() {
return list.get((int) (list.size() * Math.random()));
}
};
}
public static void main(String[] args) {
List<String> list = Arrays.asList("a", "b", "c");
RandomString<String> randomString = new RandomString<>(list);
Iterator iterator = randomString.iterator();
for (int i = 0; i < 10; i++) {
System.out.println(iterator.next());
}
}
}
a
b
c
a
b
c
a
c
a
c
Process finished with exit code 0
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