代码如下:
public class Test {
public static void main(String[] args) {
String a[] = new String[]{"a","b",null,"c",null,"d"};
String b[] = new String[]{"a","c",null};
String c[] = getArrayResult(a,b);
System.out.println(Arrays.toString(c));
}
/**
* 给定两个一维字符串数组a和b,要求除去a中包含b中元素的项,得到数组c
* @param a
* @param b
* @return
*/
public static String[] getArrayResult(String a[],String b[]){
if (a==null){
return new String[]{};
}
if (b==null){
return a;
}
List<String> aStrs = Arrays.asList(a);
List<String> bStrs = Arrays.asList(b);
List<String> cStrs = new ArrayList<>();
Iterator<String> iterator = aStrs.iterator();
while(iterator.hasNext()){
String next = iterator.next();
if (!bStrs.contains(next)){
cStrs.add(next);
}
}
String[] array =new String[cStrs.size()];
return cStrs.toArray(array);
}
}
打印结果如下: