Creating a partial directory of Grinnell courses
Course directory listing through print method
Directory Listing
LIN 205.01:  Credits:  4, Computational Linguistics
LIN 114.01:  Credits:  4, Introduction to General Linguistics
HIS 336.01:  Credits:  4, The European Metropolis
HIS 242.01:  Credits:  4, The Rise and Fall of the Soviet Union
HIS 225.01:  Credits:  4, Native American History, 1941-1865
CSC 322.01:  Credits:  2, Team Software Community Project
CSC 321.01:  Credits:  2, Software Design Principles and Practices
CSC 301.01:  Credits:  4, Analysis of Algorithms
CSC 281.01:  Credits:  1, Learning from CS Alumni
CSC 232.01:  Credits:  2, Human-Computer Interaction
CSC 214.01:  Credits:  2, Computer and Newtork Security
CSC 213.01:  Credits:  4, Operating Systems
CSC 207.01:  Credits:  4, Algorithms and Object-oriented Design
CSC 205.01:  Credits:  4, Computational Linguistics
CSC 161.01:  Credits:  4, Imperative Problem Solving and Data Structures
CSC 161.03:  Credits:  4, Imperative Problem Solving and Data Structures
CSC 151.01:  Credits:  4, Functional Problem Solving
CSC 151.02:  Credits:  4, Functional Problem Solving
End of Listing

Course directory listing through default iterator
LIN 205.01:  Credits:  4, Computational Linguistics
LIN 114.01:  Credits:  4, Introduction to General Linguistics
HIS 336.01:  Credits:  4, The European Metropolis
HIS 242.01:  Credits:  4, The Rise and Fall of the Soviet Union
HIS 225.01:  Credits:  4, Native American History, 1941-1865
CSC 322.01:  Credits:  2, Team Software Community Project
CSC 321.01:  Credits:  2, Software Design Principles and Practices
CSC 301.01:  Credits:  4, Analysis of Algorithms
CSC 281.01:  Credits:  1, Learning from CS Alumni
CSC 232.01:  Credits:  2, Human-Computer Interaction
CSC 214.01:  Credits:  2, Computer and Newtork Security
CSC 213.01:  Credits:  4, Operating Systems
CSC 207.01:  Credits:  4, Algorithms and Object-oriented Design
CSC 205.01:  Credits:  4, Computational Linguistics
CSC 161.01:  Credits:  4, Imperative Problem Solving and Data Structures
CSC 161.03:  Credits:  4, Imperative Problem Solving and Data Structures
CSC 151.01:  Credits:  4, Functional Problem Solving
CSC 151.02:  Credits:  4, Functional Problem Solving
End of Listing
Testing default iterator
hasNext at start:true
hasNext again:   true
next - 1: LIN 205.01:  Credits:  4, Computational Linguistics
next - 2: LIN 114.01:  Credits:  4, Introduction to General Linguistics
next - 3: HIS 336.01:  Credits:  4, The European Metropolis
hasNext after 3:true
hasNext again:  true
next in loop: HIS 242.01:  Credits:  4, The Rise and Fall of the Soviet Union
next in loop: HIS 225.01:  Credits:  4, Native American History, 1941-1865
next in loop: CSC 322.01:  Credits:  2, Team Software Community Project
next in loop: CSC 321.01:  Credits:  2, Software Design Principles and Practices
next in loop: CSC 301.01:  Credits:  4, Analysis of Algorithms
next in loop: CSC 281.01:  Credits:  1, Learning from CS Alumni
next in loop: CSC 232.01:  Credits:  2, Human-Computer Interaction
next in loop: CSC 214.01:  Credits:  2, Computer and Newtork Security
next in loop: CSC 213.01:  Credits:  4, Operating Systems
next in loop: CSC 207.01:  Credits:  4, Algorithms and Object-oriented Design
next in loop: CSC 205.01:  Credits:  4, Computational Linguistics
next in loop: CSC 161.01:  Credits:  4, Imperative Problem Solving and Data Structures
next in loop: CSC 161.03:  Credits:  4, Imperative Problem Solving and Data Structures
next in loop: CSC 151.01:  Credits:  4, Functional Problem Solving
next in loop: CSC 151.02:  Credits:  4, Functional Problem Solving
hasNext at end:  falseiterator at end, so next threw exception
Testing iterator with 2-credit courses
hasNext at start:true
hasNext again:   true
next - 1: CSC 322.01:  Credits:  2, Team Software Community Project
hasNext after 1:true
next - 2: CSC 321.01:  Credits:  2, Software Design Principles and Practices
next - 3: CSC 232.01:  Credits:  2, Human-Computer Interaction
hasNext after 3:true
hasNext again:  true
next in loop: CSC 214.01:  Credits:  2, Computer and Newtork Security
hasNext at end:  falseiterator at end, so next threw exception
Testing iterator with 2-credit courses and remove
iterator next not called, so cannot remove
hasNext at start:true
hasNext again:   true
next - 1: CSC 322.01:  Credits:  2, Team Software Community Project
hasNext after 1:true
next - 2: CSC 321.01:  Credits:  2, Software Design Principles and Practices
iterator next called twice, so cannot remove
next - 3: CSC 232.01:  Credits:  2, Human-Computer Interaction
hasNext after 3:false
hasNext again:  false
hasNext at end:  falseiterator at end, so next threw exception

Course directory listing after remove calls
LIN 205.01:  Credits:  4, Computational Linguistics
LIN 114.01:  Credits:  4, Introduction to General Linguistics
HIS 336.01:  Credits:  4, The European Metropolis
HIS 242.01:  Credits:  4, The Rise and Fall of the Soviet Union
HIS 225.01:  Credits:  4, Native American History, 1941-1865
CSC 322.01:  Credits:  2, Team Software Community Project
CSC 301.01:  Credits:  4, Analysis of Algorithms
CSC 281.01:  Credits:  1, Learning from CS Alumni
CSC 214.01:  Credits:  2, Computer and Newtork Security
CSC 213.01:  Credits:  4, Operating Systems
CSC 207.01:  Credits:  4, Algorithms and Object-oriented Design
CSC 205.01:  Credits:  4, Computational Linguistics
CSC 161.01:  Credits:  4, Imperative Problem Solving and Data Structures
CSC 161.03:  Credits:  4, Imperative Problem Solving and Data Structures
CSC 151.01:  Credits:  4, Functional Problem Solving
CSC 151.02:  Credits:  4, Functional Problem Solving
End of Listing