Update README.md

Author: KellzCodes

textbook work/java software solutions/2. Data and Expressions/README.md

@@ -14,3 +14,7 @@ introduce the concepts of graphical programming, explore the relationship betwee
 ### Precedence among some of the Java operators
 
 ![image](https://user-images.githubusercontent.com/19383145/145282105-dcc71c0e-7986-4353-92e4-4084d16650c4.png)
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+### some methods for scanner class
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+![image](https://user-images.githubusercontent.com/19383145/145293239-70c70f56-4445-43c0-98b2-e42c17c97f16.png)