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Asked: 2026-05-26T02:54:55+00:00

I got a simple question in Java: How can I convert a String that

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I got a simple question in Java: How can I convert a String that was obtained by Long.toString() to long?

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  1. Editorial Team

    Use Long.parseLong()

     Long.parseLong("0", 10)        // returns 0L
 Long.parseLong("473", 10)      // returns 473L
 Long.parseLong("-0", 10)       // returns 0L
 Long.parseLong("-FF", 16)      // returns -255L
 Long.parseLong("1100110", 2)   // returns 102L
 Long.parseLong("99", 8)        // throws a NumberFormatException
 Long.parseLong("Hazelnut", 10) // throws a NumberFormatException
 Long.parseLong("Hazelnut", 36) // returns 1356099454469L
 Long.parseLong("999")          // returns 999L
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