如何在Java中存储方法返回的数组
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How to store an array returned by a method in Java
提问by Mohammad Sepahvand
I want to store the array returned by a method into another array. How can I do this?
我想将方法返回的数组存储到另一个数组中。我怎样才能做到这一点？
public int[] method(){
int z[] = {1,2,3,5};
return z;
}
When I call this method, how can I store the returned array (z) into another array?
调用此方法时，如何将返回的数组 (z) 存储到另一个数组中？
采纳答案by codaddict
public int[] method() {
int z[] = {1,2,3,5};
return z;
}
The above method does not return an array par se, instead it returns a reference to the array. In the calling function you can collect this return value in another reference like:
上述方法不返回数组解析，而是返回对数组的引用。在调用函数中，您可以在另一个引用中收集此返回值，例如：
int []copy = method();
After this copywill also refer to the same array that zwas refering to before.
此后copy也将引用z之前引用的相同数组。
If this is not what you want and you want to create a copy of the array you can create a copy using System.arraycopy.
如果这不是您想要的并且您想要创建数组的副本，您可以使用System.arraycopy.
回答by saugata
int[] x = method();
回答by Kannan Ekanath
int[] anotherArray = method();
int[] anotherArray = method();
Do you want to make another physical copy of the array ?
你想制作另一个阵列的物理副本吗？
Then use
然后使用
System.arraycopy(Object src, int srcPos, Object dest, int destPos, int length)
回答by Laurent K
If you want to duplicate the array, you can use [this API][1]:
如果要复制数组，可以使用[这个API][1]：
http://java.sun.com/javase/6/docs/api/java/util/Arrays.html#copyOf(int[], int)
http://java.sun.com/javase/6/docs/api/java/util/Arrays.html#copyOf(int[], int)
回答by fastcodejava
Are you sure you have to copy?
你确定要复制吗？
int[] myArray = method(); // now myArray can be used
回答by porselvi
Try :-
尝试 ：-
int arr[]=mymethod();
//caling method it stores in array
public int[] mymethod()
{
return arr;
}
