package com.heima;
public class De {
public static void mian (String[] args){
int[] arr = {1,2,3};
System.out.println(arrayToString(arr));
}
public static String arrayToString(int[] arr) {
StringBuffer sb = new StringBuffer();
sb.append("[");
for(int i = 0;i < arr.length;i++){
if(i == arr.length - 1){
sb.append(arr[i]).append("]");
}else {
sb.append(arr[i]).append(", ");
}
}
return sb.toString();
}
} |
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