String s ="";
s+=arr;
System.out.print(arr);
int length = 0;
for (int i = 1; arr / i >= 1; i *= 10) {
length++;
}
public static int link(int[] arr1, int[] arr2) {
int length = 0;
for (int i = 0; i < arr1.length; i++) {
if (!contains(arr2, arr1)) {
System.out.print(arr1);
for (int j = 1; arr1 / j >= 1; j *= 10) {
length++;
}
}
}
for (int i = 0; i < arr2.length; i++) {
if (!contains(arr1, arr2)) {
System.out.print(arr2);
for (int j = 1; arr2 / j >= 1; j *= 10) {
length++;
}
}
}
return length;
}
public static void link(int[] arr1, int[] arr2) {
String str1 = "";
String str2 = "";
for (int i = 0; i < arr1.length; i++) {
if (!contains(arr2, arr1)) {
str1 += (arr1 + "");
}
}
for (int i = 0; i < arr2.length; i++) {
if (!contains(arr1, arr2)) {
str2 += (arr2 + "");
}
}
int numLength = (str1 + str2).length();
if (numLength == 0) {
System.out.println("两个数组的所有元素均相同");
} else {
System.out.println("字符串为:" + (str1 + str2) + "\n长度为:" + numLength);
}
}
）
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