import java.util.random
public class RandomTest
{
	public static void main ( String[] args )
	{
		Random random=new Random();//创建random对象
		int intNumber=random.nextInt();//获取一个整型数
		float floatNumber=random.nextFloat();//获取一个浮点数(0-1)
		double doubleNumber=random.nextDouble();//获取双精度数(0-1)
		boolean booleanNumber=random.nextBoolean();//获取boolean数
		System.out.println ( "intNumber:"+intNumber );
		System.out.println ( "floatNumber:"+floatNumber );
		System.out.println ( "doubleNumber:"+doubleNumber );
		System.out.println ( "booleanNumber:"+booleanNumber );
	}
}