一道java编程题，各位大神帮帮忙

Question

题目如图，

Answer 1

public class Test {

 private int[] grade;
private int max = 0;

public static void main(String[] args) {
Test test = new Test();
test.init(10);
System.out.println("最小值 :" + test.max());
}

public void init(int length){
grade = new int[length];
for (int i = 0; i < length; i++) {
grade[i] = (int) (Math.random() * 100);
if(i == 0) max = grade[i];
if(max > grade[i]){
max = grade[i];
}
System.out.print(grade[i] + " ");
}
}

public int max(){
return max;
}
}