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51CTO
2 年
深入了解Java中的StringBuilder与StringBuffer
因为字符串不可变,当字符串拼接(尤其是使用+号操作符)时,需要考量性能的问题,不多毫无顾忌的创建太多String对象,从而对内存造成不必要压力。 因此Java专门设计StringBuilder类来解决该问题 public final class StringBuffer extends AbstractStringBuilder implements Serializable ...
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