java随机数组报错，求教了,该怎么处理

java随机数组报错，求教了
import java.util.Random;

public class RandomArray {

/**
* 使用循环生成随机生成10个随机数并保存至数组中。再找出数组中最大值和最小值，输出到控制台台
*/
public static void main(String[] args) {
Random rnd=new Random();
int[] ns=new int[10];
for(int i=0;i<10;i++){
ns[i]=rnd.nextInt(100);
}


int min=0,max=0;
for(int j=0;j<9;j++){
if(ns(j)>ns(j+1)){
min=ns(j+1);
ns(j+1)=ns(j);
ns(j)=min;

}
}




}

}


代码没有写完
报错：
Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
The method ns(int) is undefined for the type RandomArray
The method ns(int) is undefined for the type RandomArray
The method ns(int) is undefined for the type RandomArray
The left-hand side of an assignment must be a variable
The left-hand side of an assignment must be a variable


}


[解决办法]

Java code

import java.util.Random;public class RandomArray {    /**     * 使用循环生成随机生成10个0--99的随机数并保存至数组中。再找出数组中最大值和最小值，输出到控制台台     */    public static void main(String[] args) {    Random rnd = new Random();    int[] ns = new int[10];    for (int i = 0; i < 10; i++) {        ns[i] = rnd.nextInt(100);    }    int min = ns[0], max = ns[0];    for (int j = 1; j < ns.length; j++) {        if(ns[j]>max) max = ns[j];        if(ns[j]<min) min = ns[j];        }    System.out.println(max);    System.out.println(min);    }}