I need some help please in Java 1 Given int values new int4

I need some help please in Java!

1. Given: int[][] values = new int[4][5]
Write a nested loop to set values as follows:

[0] [1] [2] [3] [4]
[0] 1 2 3 4 5
[1] 1 2 3 4 5
[2] 1 2 3 4 5
[3] 1 2 3 4 5

Given the following array of 5 rows and 5 columns, which contains the
distances between cities:
       [0]   [1]   [2]   [3]   [4]
       Albany   Boston   Hartford   NY   Phila
[0]   Albany   0   171   115   141   240
[1]   Boston   171   0   103   194   333
[2]   Hartford   115   103   0   120   235
[3]   NY   141   194   120   0   104
[4]   Phila   240   333   235   104   0
Note that the city names are not in the array; the array contains
the numeric entries only, which give the distance between the two
cities represented by the row and column.

2. Write the statements to initialize an array distance with the
mileage data given above.

3. Write the statements to print the following menu, read in two
city numbers, and print the distance between the two cities:

To determine the mileage between cities, enter the numbers of
two cities from the following list:
1: Albany 4: NY
2: Boston 5: Phila
3: Hartford

Enter your city numbers:

   ** Test Case: Distance between Albany and NY && Distance between Hartford and Phila

Solution

import java.util.Scanner;

Here is the fixed code; Explanation below:

It looks like you\'re not printing out the mileage at the end. Try changing the last line of your code to:

Change the code like,

Basically, to read keyboard input from the user, you need a Scanner object:

The errors you were seeing were likely due to the fact you were trying to call the method nextInt() from a null object reference (i.e. pointer to nothing):

Finally, don\'t forget to add mileage to the string that you get at the end: