从Java中的String数组中删除未填充的值或空值

public static String[] clean(final String[] v) {  int r, w;  final int n = r = w = v.length;  while (r > 0) {    final String s = v[--r];    if (!s.equals("null")) {      v[--w] = s;    }  }  return Arrays.copyOfRange(v, w, n);}

要么

public static String[] clean(final String[] v) {  int r, w, n = r = w = v.length;  while (r > 0) {    final String s = v[--r];    if (!s.equals("null")) {      v[--w] = s;    }  }  final String[] c = new String[n -= w];  System.arraycopy(v, w, c, 0, n);  return c;}

工作良好…

public static void main(final String[] argv) {  final String[] source = new String[] { "Mars", "null", "Saturn", "null", "Mars" };  assert Arrays.equals(clean(source), new String[] { "Mars", "Saturn", "Mars" });}