顺序查找_Java

public class Search001 {
public static void main(String [] args){
int [] a={1,5,6,7,8,2,3,9};
int num=8;
int res=search(a,8);
System.out.println(res);
}
public static int search(int [] a,int num){
for(int i=0;i<a.length;i++){
if(a[i]==num)
return i;
}
return -1;
}
}