Java.lang.Math

Math common methods

package cn.kgc.common;

public class TestMath {
	public static void main(String[] args) {
		//Generate a random number between 1-9
		int i=(int)(Math.random()*10);
		System.out.println(i);
		//return absolute value
		System.out.println(Math.abs(-3));
		//return the maximum value
		System.out.println(Math.max(2.5,90));
	}
}