long-integer

问题 Primitive Data Types - oracle doc says the range of long in Java is -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 . But when I do something like this in my eclipse long i = 12345678910; it shows me \" The literal 12345678910 of type int is out of range \" error. There are 2 questions. 1) How do I initialize the long with the value 12345678910 ? 2) Are all numeric literals by default of type int ? 回答1: You should add L : long i = 12345678910L; . Yes. BTW: it doesn't have to be an

问题 I have a situation where there can be long words like \'hellowordsometext\' or integer like \'1234567891122\' without any space in between. check this js please. http://jsfiddle.net/rzq5e/6/ how is it possible to break it in to next line after it reach the div width. what happens now is, it spans out out along with th div <div>Solutionforentprise</div> 回答1: What you need is word-wrap: break-word; , this property will force the non spaced string to break inside the div Demo div { width: 20px;

问题 How do I convert a long to a byte[] and back in Java? I\'m trying convert a long to a byte[] so that I will be able to send the byte[] over a tcp connection. On the other side I want to take that byte[] and convert it back into a double. Any tips would be appreciated. 回答1: public byte[] longToBytes(long x) { ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES); buffer.putLong(x); return buffer.array(); } public long bytesToLong(byte[] bytes) { ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES

问题 This question already has an answer here: Int division: Why is the result of 1/3 == 0? 15 answers This is a basic question but I can\'t find an answer. I\'ve looked into floating point arithmetic and a few other topics but nothing has seemed to address this. I\'m sure I just have the wrong terminology. Basically, I want to take two quantities - completed, and total - and divide them to come up with a percentage (of how much has been completed). The quantities are long s. Here\'s the setup:

问题 I often see questions relating to Overflow errors with vba. My question is why use the integer variable declaration instead of just defining all numerical variables (excluding double etc.) as long ? Unless you\'re performing an operation like in a for loop where you can guarantee that the value won\'t exceed the 32,767 limit, is there an impact on performance or something else that would dictate not using long ? 回答1: Integer variables are stored as 16-bit (2-byte) numbers msdn Long (long