字符串数组索引到字符串

Question

我尝试更改字符串数组中的随机索引，并将其放入JPanel g.drawString(Str, int, int)。

我无法将数组的特定随机索引传递到Str槽。

String[] messages = {"WOW, these fireworks are super cool.", "that one looks like a dragon", "did a star just explode","This would be cool on fourth of July.", "We should have packed a picnic"};

g.drawString(Arrays.toString(messages), getWidth()-300, (getHeight()/2)-200); 

截至目前，这将打印整个数组，我只想要一个特定的随机索引。我在考虑使用这样的东西：

i=rand.nextInt(4);
messages[i];

我只想打印messages[i]

Answer 1

试试这个：

int i=new Random().nextInt(4);
String[] array={"Hello","Random Text","Apple","3.14159","Bye"};
g.drawString(array[i],300, 200); 

希望这会有所帮助。

Answer 2

应该是这样的：

String[] stringsData = new String[5];
[...]

Random random = new Random();
String randomString = stringsData[random.nextInt( stringsData.length )];
g.drawString(randomString, 0, 0);