String[].clear in Android 1.5

Question

I am trying to port some Android 2.x code to Android 1.5, here is the problematic line:

String[] myStringsArray = ...
...
myStringsArray.clear();

String[].clear() is not defined in Android 1.5, leading to this error:

[javac] MyClass.java:1692: cannot find symbol
[javac] symbol  : method clear()
[javac] location: class java.lang.String[]
[javac]         myStringsArray.clear();

What is the best I could use instead?

Answer 1

You can use the java.util.Arrays utility class.

Arrays provides a static method called fill() which takes your Array as the first parameter and the Object or primitive to fill the array as the second parameter.

You could fill your Array with null like this.

String myStringsArray[] = ...

Arrays.fill(myStringsArray, null);

Now every position in the Array is null.

Answer 2

没有为数组定义这种方法clear() 。您可以使用List<String>并使用clear()

Answer 3

There is no such method to clear String[]

you can use new String[0]; to clear values from you string array