That's because indexOf(String) is a JVM intrinsic: its Java code is actually replaced by JIT compiler with efficient inline implementation. For constant string ... ... <看更多>
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That's because indexOf(String) is a JVM intrinsic: its Java code is actually replaced by JIT compiler with efficient inline implementation. For constant string ... ... <看更多>
Java String indexOf () 方法用于查找给定 String 中指定字符或子字符串的索引。 String 类中有4 种变体:. indexOf() 方法签名. int indexOf(int ch) :返回给定 ... ... <看更多>
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String x = new String(String);, 使用""括起來的字串或其他字串物件來建立字串 ... indexOf(T), 第一次搜尋到參數T的位置,沒有找到則回傳-1,T可為字元或字串, int. ... <看更多>