Sumary so far

• Strings and debugging

  • Strings are objects
    • Concatenation with + operator
    • Lots of useful string manipulation methods in java.lang.String
  • Strings are special:
    • Don’t need to instantiate;
      can initialize by assignment
    • Can usually compare with
      ==, but don’t rely on it
  • toString() and debugging main()
    • Define a toString() method
      for debugging each class

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