COMPSCI 2S03 Lecture Notes - Lecture 3: Operand, Type Conversion, Boolean Expression
21 Feb 2018
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Document Summary
Binary operators work with two operands (e. g. binary operators. Int to double is not lossy (no information is loss), all the data is conserved in double. 2. 0 is automatically a double, must specify float. Java automatically promotes to broader data type e. g. 4 + 8. 7, int 4 is converted to 4. 0 (floating point) to complete the operation. Double to int variable, some of the information is lost double numberofhours = 40. 65; int numberoffullhours = (int) numberofhours; Two different precedence, higher precedence will take priority. Evaluation is left to right 6 + 5 7, + has priority because of left to right despite same precedence. % and * have the same precedence int by int will result in an int integer division. Printf is a method in system. out, works with the dot operator. %d = digit (decimal number system for ints) %6d = prints whole value, right justified by 6 spaces.
