Question

java中我想把俩个都有空字符串的数组用for循环拼接到一个新的数组中，求大神指点

String[] a = new String[]{"1","2","3","","","free8"};
String[] b = new String[]{"","","","4","5","free8"};
我想得到的结果是
String[] c = new String[]{"1","2","3","4","5","free8"};

Answer 1

public class CombinationArray {
public static void main(String[] args) {
/** 如果你要插入的数据位置是1对1的，那么可以取其中一个数组作为基本，另个数组的数据往里插 */
String[] a = new String[] { "1", "2", "3", "", "", "free8" };
String[] b = new String[] { "", "", "", "4", "5", "free8" };
for(int i = 0; i < a.length; i++){
if(a[i].equals("")){
a[i] = b[i];
}
}
System.out.println(java.util.Arrays.toString(a));
}
}

Answer 2

声明一个新的数组，然后把不是空的数据放到里面