关于equals()和hashcode()方法的一些实验
1、新建一Student.java，包含3个field，和相应的get、set方法。
/** * Compares this string to the specified object. The result is {@code * true} if and only if the argument is not {@code null} and is a {@code * String} object that represents the same sequence of characters as this * object. * * @param anObject * The object to compare this {@code String} against * * @return {@code true} if the given object represents a {@code String} * equivalent to this string, {@code false} otherwise * * @see #compareTo(String) * @see #equalsIgnoreCase(String) */ public boolean equals(Object anObject) {if (this == anObject) { return true;}if (anObject instanceof String) { String anotherString = (String)anObject; int n = count; if (n == anotherString.count) {char v1[] = value;char v2[] = anotherString.value;int i = offset;int j = anotherString.offset;while (n-- != 0) { if (v1[i++] != v2[j++])return false;}return true; }}return false; }?
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?http://huangqiqing123.iteye.com/blog/1462404
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