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We know that when we use small numbers then we use small data types like short or byte and for larg number we use long or others but i read in a book "type(byte,short,int,.....) determines behavior not size" pls explain. ------------------
Bob Lancaster
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Originally posted by rashid khokhar: We know that when we use small numbers then we use small data types like short or byte and for larg number we use long or others but i read in a book "type(byte,short,int,.....) determines behavior not size" pls explain.
The type determines the number of bytes allocated in the memory, and the range of possible values. The number 17 could be a byte, short, int or long. The value 75000 could only be an int or long. A better explaination could be found in Chapter 1 of RHE. I have noticed that the answers to most, if not all, of your questions could be found in The Complete Java 2 Certification Study Guide by Roberts, Heller and Ernest. If you do not have this book, buy it. If you are studying for the SCJP and/or the SCJD exam, the book is worth its weight in gold. -Bob Lancaster SCJP working on SCJD
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