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AP Computer Science A
Unit 7 – ArrayList in AP Computer Science A
Topic 7.4
Which of the following code blocks correctly counts the number of two-digit numbers in an Integer ArrayList?
public static int codeBlock(ArrayList<Integer> array) { int x = 0; for (int y: array) { if (10 <= y && y < 100) { x++; } } return x; }
public static int codeBlock(ArrayList<Integer> array) { for (int y: array) { if (10 <= y && y < 100) { return 1; } } return 0; }
public static int codeBlock(ArrayList<Integer> array) { int x = 0; for (int y: array) { if (10 <= y && y < 100) { x++; return x; } } return 0; }
public static int codeBlock(ArrayList<Integer> array) { for (int y: array) { if (10 <= y && y < 100) { y++; } } return y; }
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AP Computer Science A - 7.4 Developing Algorithms Using ArrayLists
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Code Blocks
Counts
Integer ArrayList
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