package test; public class MathTest { public static void main(String[] args) { System.out.println(Math.abs(-40.3)); System.out.println(Math.abs(40.3)); System.out.println(Math.max(5,6)); int i = (int)(Math.random()*10);// 生成0-9随机数 System.out.println(i); System.out.println(Math.abs(-40.3)); } }
40.3 40.3 6 4 40.3