尝试自定义两个过滤流子类(如CaseInputStream和CaseOutputStream),实现将字母进行大小写转换功能。例如,键盘标准输入为aAbB,用CaseInputStream读取后应转换为AaBb,再用CaseOutputStream进行输出时,又会变为aAbB。
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答案解析:有
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尝试自定义两个过滤流子类(如CaseInputStream和CaseOutputStream),实现将字母进行大小写转换功能。例如,键盘标准输入为aAbB,用CaseInputStream读取后应转换为AaBb,再用CaseOutputStream进行输出时,又会变为aAbB。
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