我的代码正在生成sampleTableColumns:[
{Header: 'Author', accessor: 'author'},
{
Header: 'Books',
accessor: 'books'
render: (rowInfo) => {
return (
<span>
{rowInfo.value.map(book => (<span>{book.title}</span>))}
</span>
},
},
],
异常。如何删除它?
答案 0 :(得分:1)
更改,
System.out.println(arr[n]);
为:
System.out.println(Arrays.toString(arr));
答案 1 :(得分:1)
的System.out.println(ARR [N]); 这是问题,因为没有索引&#34; n&#34; n是元素的数量 你必须将表格0循环到n-1
for(int i =0;i < n;i++){
System.out.println(arr[i]);
}
答案 2 :(得分:0)
您的代码可以正常反转元素数组,但由于System.out.println(arr [n])引发了arrayIndexOutOfBound异常。记住数组索引从零开始。对于n大小的数组,范围将是[0,(n-1)],即,如果n = 5,则范围将是0到4.
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