课堂作业

package yiyi;
import java.util.Scanner;
import java.lang.*;
public class test {
public static void main(String []args)
{
Scanner input =new Scanner(System.in);
System.out.println("请输入一个数组的长度");
int length=input.nextInt();
int i;
int []array=new int[length];
System.out.println("请输入一个数组");
for(i=0;i<length;i++ )
{
int a=input.nextInt();
array[i]=a;
}
if(length==0)
throw new IllegalArgumentException();
int resultNum=array[0];
int occurrence=0;
for(i=0;i<length;i++)
{
if(array[i]==resultNum)
{
occurrence=0;
}
else
{
if(--occurrence==0)
{
resultNum=array[i];
}
}
}
System.out.println(resultNum);
}

}