import java.util.Arrays;
public class text {
public static void main(String[] args) {
int [] s={2,3,1,5,6,4,7};
int preMax=getArrayPreMax(s);
System.out.println("数组的次最大值是:"+preMax);
}
public static int getArrayPreMax(int [] s){
Arrays.sort(s);
return s[s.length-2];
}
}