int[] memory = new int[m];
时间: 2023-07-16 22:12:13 浏览: 36
这是一个 Java 代码片段,它创建了一个名为 "memory" 的整数数组,其大小由变量 "m" 指定。该数组可以存储 "m" 个整数。请注意,数组的索引从零开始,因此可以访问 "memory" 数组中的第一个元素,如下所示:
int firstElement = memory[0];
同样,可以访问最后一个元素,如下所示:
int lastElement = memory[m-1];
相关问题
int *a=new int[50]
This line of code creates a dynamic array of 50 integers and assigns a pointer to the first element of the array to the variable 'a'. The 'new' operator is used to allocate memory for the array on the heap, and the 'int' keyword specifies the data type of the elements in the array.
Since this is a dynamic array, the size of the array can be changed at runtime by using the 'delete' operator to deallocate the current array and then creating a new array with a different size using the 'new' operator. It is important to remember to deallocate the memory allocated by the 'new' operator using the 'delete' operator when the array is no longer needed to avoid memory leaks.
int *p = new int[10];
This code allocates memory on the heap for an integer array of size 10 and assigns the address of the first element to a pointer variable named 'p'. The pointer 'p' can be used to access individual elements of the array or to perform operations on the entire array.
It is important to note that since memory is allocated dynamically using the 'new' keyword, it must be deallocated manually using the 'delete[]' keyword when it is no longer needed. Failure to do so can result in memory leaks.
Here is an example of how to allocate and deallocate memory using the above code:
```c++
int *p = new int[10]; // allocate memory for 10 integers
// use the pointer to access and modify individual elements of the array
p[0] = 1;
p[1] = 2;
// ...
delete[] p; // deallocate memory when finished using it
```
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