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Railroad diagrams, also known as syntax diagrams, are a visual way to represent the grammar of a programming language. To use it, you...
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Searching for: multiple choice
Individual Exercises
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How many times does the loop execute? That is, how many times is hello() called?
for(;;) hello(); } 0
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How many times does the loop execute? That is, how many times is hello() called?
for (int i = 0; i < 5; i++) hello(); } 0
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How many times does the loop execute? That is, how many times is hello() called?
for (int i = 0; i <= 5; i++) hello(); } 0
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How many times does the code below calls greetings()?
for (int i = 0; i < 10; i++) hello(); greetings(); } 0
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What is the root node of the tree shown here? 
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How many internal nodes there are in the tree shown here?
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What is the depth of the tree shown here?
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Select all of the nodes that are children of node 10 in the binary tree shown here.
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What type of binary tree is this? 
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What is the depth of the tree shown here?
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How many nodes are at level 3 in this tree?
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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Given an integer num, return the sum of the multiples of num between 1 and 100. For example, if num is 20, the returned value should be...
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Given two integers size and num, return an array that can hold size integers and is filled with multiples of num, starting with num. For...
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Surround the appropriate lines of code with a try catch block so that first, an exception is caught when the String index is out of...
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Complete the code so that the variable polarity is -1 when adding first and second is negative, but polarity is 1 when adding first and...
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You wrote the following statements when first learning about Jeroo methods--they move the Jeroo forward 3 steps. Now that you've found...