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SPL(Structured Process Language) A programming language specially for structured data computing.

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package com.scudata.array;

public interface NumberArray extends IArray {
	/**
	 * ȡָ??λ??Ԫ?ص?????ֵ
	 * @param index ????????1??ʼ????
	 * @return ????ֵ
	 */
	//int getInt(int index);

	/**
	 * ȡָ??λ??Ԫ?صĳ?????ֵ
	 * @param index ????????1??ʼ????
	 * @return ??????ֵ
	 */
	//long getLong(int index);
	
	/**
	 * ȡָ??λ??Ԫ?صĸ?????ֵ
	 * @param index ????????1??ʼ????
	 * @return ??????ֵ
	 */
	double getDouble(int index);
	
	/**
	 * ????????????Ӧ?ĳ?Ա???бȽϣ????رȽϽ??????
	 * @param rightArray ?Ҳ?????
	 * @return IntArray 1??????0????ȣ?-1???Ҳ??
	 */
	IntArray memberCompare(NumberArray rightArray);
	
	/**
	 * ?Ƿ???nullֵ????
	 * @return
	 */
	boolean hasSigns();
}