实现数组的复制功能，根据旧数组，返回一个新数组，元素和旧数组一样
public class Test{
public static void main(String
[] args
){
int[] arr
= {1,2,3,4,5,6,7,8,9};
Array1 myCopyArray
= new Array1();
int[] arr3
= myCopyArray
.copyArray(arr
);
for (int k
=0;k
<arr3
.length
;k
++ ){
System
.out
.print("\t"+arr3
[k
]);
}
}
}
class Array1{
public int[] copyArray(int[] arr1
){
int[] arr2
= new int [arr1
.length
];
for (int i
=0;i
<arr1
.length
;i
++ ){
arr2
[i
] = arr1
[i
];
}
return arr2
;
}
}
