用Java初始化Map,Hashmap
你将如何初始化Java中的静态地图?
方法一:如下创建一个从Hashmap扩展的类
下面是一个例子,说明我使用CustomMap的方式:
public class CustomMap < K, V > extends java.util.HashMap < K, V > {
  public CustomMap(Object[]...objs) {
    super();
    this.of(objs);
  }
  public java.util.Map < K, V > of(Object[]...objs) {
    for (Object[] o: objs) {
      this.of((K) o[0], (V) o[1]);
    }
    return this;
  }
  public java.util.Map < K, V > of(K k, V v) {
    this.put(k, v);
    return this;
  }
  public static Object[] tuple(Object k, Object v) {
    return new Object[] {
      k, v
    };
  }
  //USAGE
  public static void main(String...args) {
    //import static CustomMap.tuple;
    java.util.Map < String, String > cmap = new CustomMap < > (CustomMap.tuple("One", "Two"));
  }
}
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