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CheckPoint.java
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CheckPoint.java
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import java.util.Scanner;
//import java.util.Scanner;
public class CheckPoint
{
public static void main(String [] args)
{
//CheckPoint Ch.7.2
/**
* 7.9
int[] numbers1 = { 1, 3, 6, 9 };
int[] numbers2 = { 2, 4, 6, 8 };
int resultat;
resultat = numbers1[0] * numbers2[3];
System.out.println(resultat);
*/
/**
* 7.10 & 7.11
int[] array;
int val;
//Create a scanner to read input.
Scanner key = new Scanner(System.in);
//Ask the user for list size.
System.out.println("hur lång ska listan vara, ange i heltal. : ");
val = key.nextInt();
//create the array
array = new int[val];
for(int index = 0; index < val; index++ )
{
array[index] = -1;
System.out.println(array[index]);
}
*/
/**
* 7.12
int[] a = { 1, 2, 3, 4, 5, 6, 7 };
int[] b = new int[7];
for(int index = 0; index < a.length; index++)
{
b[index] = a[index];
System.out.println(a[index] + "\n" + b[index]);
}
*/
/**
* 7.13 - 7.14
*/
//Variable
int user = 0;
//create a scnner
Scanner key = new Scanner(System.in);
//Ask the user for the index.
System.out.print("How many elements?: ");
user = key.nextInt();
//Create the array
int[] numbers = new int[user];
//Pass the array
myMethod(numbers);
key.close();
}
/**
* The myMethod accepts a reference
* to an array its argument.
* @param array
*/
private static void myMethod(int[] array)
{
//Display the array elements.
for (int index = 0; index < array.length; index++)
System.out.println(array[index] + " ");
}
}