小编use*_*994的帖子

嘿,我刚刚开始编写关于java的第一本编程书,所以这应该是一个简单的解决方案.用我对条件语的新知识搞清楚,我得到了标题错误.

这是代码:

import java.util.Scanner;

public class Music
{
    public static void main( String[] args )
    {

        Scanner x = new Scanner( System.in );

        int y;

        System.out.print( "Which is better, rap or metal? 1 for rap, 2 for metal, 3 for neither" );
        y = input.nextInt();

        if ( y == 1 )
            System.out.print( "Someone hasn't heard\nhttp://www.youtube.com/watch?v=Vzbc4mxm430\nyet" );

        if ( y == 2 )
            System.out.print( "Someone hasn't heard\nhttp://www.youtube.com/watch?v=s4l7bmTJ7j8\nyet" );

        if ( y == 3 )
            System.out.print( "=/ \nMusic sucks anyway." );
    } …

if ( 25 <= si & < 30 )

没有工作,我无法找到正确使用&的谷歌信息的方法.

出现的错误消息表明它希望>在哪里.