代ç å¦ä¸ï¼
import java.util.HashMap;
import java.util.Map;
public class App {
public static void main(String[] args) {
Map<String, Object> map = new HashMap<>();
map.put("Name", "Barry");
map.put("Gender", "Male");
map.put("Age", 25);
// 第ä¸ç§éåæ¹å¼
for (Map.Entry<String, Object> entry : map.entrySet()) {
System.out.println(entry.getKey() + " = " + entry.getValue());
}
// 第äºç§éåæ¹å¼
map.forEach((key, value) -> {
System.out.println(key + " = " + value);
});
// éè¿éå keyï¼ç¶ååè·å value
for (String key : map.keySet()) {
System.out.println(key + " = " + map.get(key));
}
// åç¬éå values
for (Object value : map.values()) {
System.out.println(value);
}
}
}