Question

Java入门编程题 求大佬帮忙解答一下 请附上代码和运行截图

定义一个方法printMax，功能为求二维数组的最大值。在main()方法中调用printMax，并求数组ay的最大值。ay数组元素为{{22,91,0,5},{33,21},{19,-1,28,88}}
要求输出结果如下：数组ay最大值为：91

Answer 1

public static void printMax(){
int[][] ay = {{22,91,0,5},{33,21},{19,-1,28,88}};
List<Integer> list = new ArrayList<>();
for (int[] x:ay){
for (int y:x){
list.add(y);
}
}
System.out.println(Collections.max(list));
}

public static void main(String[] args) {
printMax();
}