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java:lang:math:random [2024/02/16 01:12] (current) |
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| + | ====== Math.random() ====== | ||
| + | <code java> | ||
| + | Math.random() double; | ||
| + | </code> | ||
| + | |||
| + | generate a 'double' random number | ||
| + | |||
| + | ===== example of Math.random in java ===== | ||
| + | <code java> | ||
| + | package codereferececomjava; | ||
| + | |||
| + | public class CodeRefereceComJava { | ||
| + | |||
| + | |||
| + | public static void main(String[] args) { | ||
| + | |||
| + | double randomDigit; | ||
| + | randomDigit = Math.random(); | ||
| + | System.out.println(randomDigit); // random number as double | ||
| + | System.out.println(randomDigit*1000+1); //double random number between 1-1000 | ||
| + | System.out.println((int)(randomDigit*1000+1)); //double random number between 1-1000 | ||
| + | |||
| + | } | ||
| + | } | ||
| + | |||
| + | </code> | ||
| + | |||
| + | === output of Math.random() === | ||
| + | 0.362427879998085 | ||
| + | 363.427879998085 | ||
| + | 363 | ||