IT 114: Introduction to Java - Answers to Class 22 Ungraded Quiz

IT 114: Introduction to Java
Answers to Class 22 Ungraded Quiz

Can a Scanner object only be used with input from the keyboard?
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no. it can also be used with a file
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What do you call the string used the mark the end of one token and the beginning of the next?
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a delimiter
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Can a Scanner object read a file of numbers with more than one number on each line?
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yes
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By default what does a Scanner object use to mark the end of one token and the beginning of the next?
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whitespace
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If you were totaling the numbers in a file and were adding each number to the variable total what would you give total as it's first value?
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0
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If you were writing a program to find the maximum value which was stored in the variable max what would you give max as it's first value?
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a very low number
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If you were writing a program to find the maximum value which was stored in the variable min what would you give min as it's first value?
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a very high number
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What do you use to read information from a file?
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a Scanner object
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What argument do you need to create the object needs to read a file?
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a File object
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What kind of control structure do you use to read the information in a while?
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a while loop
```