我有:
ArrayList<List<Integer>> group = new ArrayList<List<Integer>>();
group.add(Arrays.asList(1, 2, 3));
group.add(Arrays.asList(4, 5, 6));
group.add(Arrays.asList(7, 8, 9));
如何找到第一、第二、第三列和第一、第二、第三行的最大值?
这是我尝试过的:
int aMaxR1, aMaxR2, aMaxR3;
int aMinC1, aMinC2, aMinC3;
aMaxR1 = Collections.min(group.get(here could be first row));
aMaxR2 = Collections.min(group.get(here could be second row));
aMaxR3 = Collections.min(group.get(here could be third row));
aMaxC1 = Collections.max(group.get(here could be first column));
aMaxC2 = Collections.max(group.get(here could be second column));
aMaxC3 = Collections.max(group.get(here could be third column));
最佳答案
要获得行中的最大值,这非常简单,而且您的方法是正确的。
aMaxR1 = Collections.max(group.get(0));
对于列,您可以执行 for 循环:
for(int i = 0; i < group.size(); i++){
System.out.println(Math.max(Math.max(group.get(0).get(i), group.get(1).get(i)), group.get(2).get(i)));
}
输出:
7
8
9
关于java - java 二维数组列表的最大值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19882950/