Map<String, String> testMap = Maps.newHashMap();
for (int i = 0; i < 10; i++) {
testMap.put(String.valueOf(i), String.valueOf(i) + "$$$$");
}
Iterator<Map.Entry<String, String>> it = testMap.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<String, String> entry = it.next();
System.out.println(entry.getKey() + "=>" + entry.getValue());
it.remove();
}
System.out.println(testMap.size());
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