Update Hearts.java
Update Hearts.java

https://github.com/nmcl/scratch/issues/51

nmcl/scratch,nmcl/scratch,nmcl/wfswarm-example-arjuna-old,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch,nmcl/scratch