Question

java int数组转成字符串

例如 int[] = new int[]{1,2,3,4,5}
转成 String s = "1,2,3,4,5";

Answer 1

int[] arr = new int[]{1,2,3}; 
System.out.println(Arrays.toString(arr));
String s = Arrays.toString(arr);
System.out.println(s.substring(1, s.length()-1));
输出：
[1, 2, 3]
1, 2, 3

Answer 2

int[] ints= {1,2,3,4,5};
StringBuffer str = new StringBuffer();
for (int i = 0; i <ints.length ; i++) {
str = str.append(ints[i]);
}
System.out.print(str.toString());

Answer 3

String s=int[0];
for(i=1;i<int[].size;i++){
s=s+','+int[i];
}