Arrays

Making Arrays

100

make an array with test grades of 80, 88, and 89

int [] testGrades = {80,88,89}

200

write an array of 5 integers called list

int list [] = new int [5];

For Each Loops

100

Example of for each loop

for (int number: numbers) 

{
      System.out.println(number);

}

200

Example of for loop

for (int i=0; i<nums.length; i++)

{

System.out.println(nums[i]);

}

Arrays

100

a collection of values in an organized way

What is an array?

200

What are the values organized by?

index

Code

100

What is the output after this code snippet runs?

int[] scores = {80, 92, 91, 68, 88}; for(int i = 0; i < scores.length; i--) { System.out.println(scores[i]); }

ArrayIndexOutOfBoundsException

200

String[] words = new String[10];
words[0] = "dog";
words[3] = "cat";
words[2] = "pig";
out.println( words[0] );
out.println( words[3] );
out.println( words[7] );
--------
State the output

dog
cat
null

400

int [] arr = {7,2,5,3,0,10};

for (int k=0;k<arr.length-1;k++)

{

if (arr[k]> arr [k+1])

System.out.println(k + " " + arr[k] + " ");

}

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