代码:
Random random = new Random () ;
int i = 0 ;
i = random.nextInt ( Max - Min ) + Min ;
return i ;
结果:
r2:105r2:116r2:116r2:116r2:116r2:116r2:116r2:116r2:116r2:116r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:419r2:419r2:419r2:419r2:419r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570
Random random = new Random () ;
int i = 0 ;
i = random.nextInt ( Max - Min ) + Min ;
return i ;
结果:
r2:105r2:116r2:116r2:116r2:116r2:116r2:116r2:116r2:116r2:116r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:967r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:815r2:419r2:419r2:419r2:419r2:419r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:699r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:655r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570r2:570
import java.util.Random; public class RandomApp{
public static void main(String args[]){
Random ran1=new Random();
Random ran2=new Random(12345);
//创建了两个类Random的对象。
System.out.println("The 1st set of random numbers:");
System.out.println(" Integer:"+ran1.nextInt());
System.out.println(" Long:"+ran1.nextLong());
System.out.println(" Float:"+ran1.nextFloat());
System.out.println(" Double:"+ran1.nextDouble());
System.out.println(" Gaussian:"+ran1.nextGaussian());
//产生各种类型的随机数
System.out.print("The 2nd set of random numbers:");
for(int i=0;i<5;i++){
System.out.println(ran2.nextInt()+" ");
if(i==2) System.out.println();
//产生同种类型的不同的随机数。
System.out.println();
}
}
}
接分