Trending is most interesting when you compare the five languages together. C/C++ continues to trend on a pretty steady path, and at a high level relative to most languages. Java has fared the worst in that it has gone from being higher than C/C++ to being well below. In fact, Swift has trended higher in recent months than where Java is now. If both continue on their paths, Swift will likely overtake Java. Of course, C# has also trended relatively flat, but at lower numbers. Visual Basic has dropped the most in that it has fallen below C# and Swift to take the bottom position of the five languages.
Of course, this is data based on Google Trends, which is relative to what people to how people are searching. Like the Tiobe index, this is somewhat of a flawed way to look at language popularity. Even so, the data is interesting. If you have any thoughts on the data, comment below!