Math类常用方法
package cn.usts.edu.fly.MathAndRondom;
public class MathDemo {
public static void main(String[] args) {
System.out.println(Math.abs(-12));
System.out.println(Math.sin(45));
System.out.println(Math.pow(2,3));
System.out.println(Math.ceil(2.6));
System.out.println(Math.floor(3.2));
System.out.println(Math.round(3.5));
System.out.println(Math.max(1.1,22.2));
System.out.println(Math.min(1.1,22.2));
System.out.println(Math.random());
}
}
Random类的常用方法
package cn.usts.edu.fly.MathAndRondom;
import java.util.Random;
public class RandomDemo {
public static void main(String[] args) {
Random random = new Random();
System.out.println("随机的布尔值:"+random.nextBoolean());
System.out.println("随机的布尔值:"+random.nextDouble());
System.out.println("随机的Float:"+random.nextFloat());
System.out.println("随机的Int():"+random.nextInt());
System.out.println("随机的0-10 int:"+random.nextInt(10));
System.out.println("随机的Long值:"+random.nextLong());
}
}