扩展java.lang.String [英] Extend java.lang.String

问题描述

java.lang.String被声明为final，但有没有合法的机制或以其他方式扩展它并替换equals（String other）方法？

java.lang.String is declared as final, however are there any mechanisms available legitimate or otherwise to extend it and replace the equals(String other) method?

推荐答案

不，绝对没有。如果你想要一些其他类型的字符串，请创建另一种可能包含字符串的类型：

No, absolutely not. If you want some "other" kind of string, create another type which might contain a string:

public final class OtherString {
    private final String underlyingString;

    public OtherString(String underlyingString) {
        this.underlyingString = underlyingString;
    }        

    // Override equals however you want here
}

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