CS 1 AP Worksheet – Arrays



CS 1 AP Worksheet – Arrays

Name________________________

Use the following program segment to answer questions 1-10:

...

public static void main(String [] args){

int [] N1 = new int[10];

double [] N2 = new double[24];

char [] N3 = new char[17];

int [] N4 = new int[10];

...

}

1. The subscripts of array N3 are of type_____________

2. The elements of array N2 are of type ______________

3. The elements of array N4 are assigned the value______

4. How many elements (values) can array N1 contain? _____

5. How many elements (values) can array N2 contain? _____

6. How many elements (values) can array N3 contain? _____

7. How many elements (values) can array N4 contain? _____

8. How would you assign the value ‘B’ to the first position in N3?

9. How would you assign the value of 100 to each element in N1?

10. How would you assign the value 13.5 to the 3rd location in N2?

Use this declaration and diagram to answer #11 – 15:

int[] Ex = new int[7];

Ex

|13 |43 |76 |31 |45 |91 |0 |

11. What is the output for System.out.print(Ex[1]);? ____________

12. What is the output for System.out.print(Ex[3]);? ____________

13. What is the output for System.out.print(Ex[5]);? ____________

14. What is the output for System.out.print(Ex[7]);? ____________

15. What is the output for System.out.print(Ex[0]);? ____________

Fill in the arrays below:

16. Ex

| | | | | | | |

N=0;

for(k = 2; k ................
................

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