操作员| 对于int值

Question

I think this is a basic in java, but sorry, I ask in stackoverflow.

I will give an example in eclipse RCP. For example, if I want to make instance of Text (swt text), I would do below:

Text text = new Text(composite, SWT.BORDER | SWT.MULTI);

In second parameter Text, it is a int style, and I would the text will be border and can be multi line, so I add SWT.BORDER | SWT.MULTI (the operator | will be used).

Now the question, for example I add already have a variable int style by the method getStyle() in the Text class. But I want to check if the SWT.MULTI is already set or not, how can I archive it? Thanks

Answer 1

bool multiIsSet = (x & SWT.MULTI) == SWT.Multi

Answer 2

Your solution is the bitwise & operator.

if (myText.getStyle() & SWT.MULTI){
 //whatever
}