Programming Groovy 2

5.4 String Convenience Methods

We already praised ​String​’s ​execute​ method. In fact, it helped us create a ​Process​ object so we can execute system-level processes with only a couple of lines of code; see ​A Quick Look at the GDK​.

We can get fancier with ​String​ using other methods. For example, take a look at the following code, which uses an overloaded operator of ​String​:

str = "It's a rainy day in Seattle"
println str

str -= "rainy "
println str

The output shows the effect of the overloaded operator:

It's a rainy day in Seattle
It's a day in Seattle

The ​-=​ operator is useful for manipulating a string, it removes part of the left-side string that matches the string on the ...