用户指定列表个数并输入列表，判断该列表是否升序，我代码有两错误，帮我看看要怎么改，thanks

Question

 public static void main(String[] args){
        /*让用户输入列表数的个数*/
        System.out.print("enter the size of the list");
        Scanner input=new Scanner(System.in);
        int geshu=input.nextInt();
        /*让用户输入列表*/
        int [] shuzu=new int[geshu];
        System.out.print("enter the contents of the list:");
        for(int i=0;i<geshu;i++){
            shuzu[i]= input.nextInt();
        }
        /*检查是否升序*/
        int a=shuzu[0];
        for(int j=1;j<geshu;j++){
            if(shuzu[j]>=a){
                a=shuzu[j];
                continue;
            }
            else {
                boolean buer=true;
                break;
            }
        }
        /*显示结果*/
        System.out.print("the list has 9 integers :"+shuzu[++]);/*expression expected*/
        if(buer==true){/*cannot resolve symbol 'buer' */
            System.out.print("the list is already sorted");
        }
        else
            System.out.print("the list is not sorted");
    }

Answer 1

第25行没有看懂，第26行buer没有定义为方法里面的全局变量，是有问题的，建议改成如下：

public static void main(String[] args){
        /*让用户输入列表数的个数*/
        System.out.print("enter the size of the list");
        Scanner input=new Scanner(System.in);
        int geshu=input.nextInt();
        /*让用户输入列表*/
        int [] shuzu=new int[geshu];
        System.out.print("enter the contents of the list:");
        for(int i=0;i<geshu;i++){
            shuzu[i]= input.nextInt();
        }
        /*检查是否升序*/
        int a=shuzu[0];
        boolean buer=false;
        for(int j=1;j<geshu;j++){
            if(shuzu[j]>=a){
                a=shuzu[j];
                continue;
            }
            else {
                buer=true;
                break;
            }
        }
        /*显示结果*/
        System.out.print("the list has 9 integers :"+shuzu.length);/*expression expected*/
        if(buer==true){/*cannot resolve symbol 'buer' */
            System.out.print("the list is already sorted");
        }
        else
            System.out.print("the list is not sorted");
    }