For that if use the array? Which is the its main function?

[Gustavo Siqueira]

Hello all!

For that if uses the ARRAY ? Which is the its main function ?
Examples use please.

Thanks by opportunity!

[Jesper de Jong]

Welcome to the Ranch!

Learn about arrays in The Java Tutorials - Arrays.

[Gustavo Siqueira]

Thanks, I read!

See my code:

public class arrayTest {
	
	//inicialização do programa
	public static void main(String args[])
	{
		
		int[] anArray; //declares an array of intengers
		
		anArray = new int[10];
		
		anArray[0] = 100; //initialize first element
		anArray[1] = 200; //initialize second element
		anArray[2] = 300; 
		anArray[3] = 400;
		anArray[4] = 500;
		anArray[5] = 600;
		anArray[6] = 700;
		anArray[7] = 800;
		anArray[8] = 900;
		anArray[9] = 1000;
		
		for(int start=0; start <= anArray.length; start++)
		{
			System.out.printf("Elementos: %d",anArray);
		}
		
		
	}

}

There was one error. I make with that the code is printed with the FOR, and no as shown in tutorial.
How do that the problem is corrected ?
Thanks!

[Roberto Perillo]

Fala Gustavo!

Champ, how do you get one element of your array (hint: use the start variable)? And second: verify if you are iterating more than the actual length of your array.

[Murtaza Lokhandwala]

replace start <= anArray.length with start < anArray.length

[Gustavo Siqueira]

Thanks you all!
Very good!

[Roberto Perillo]

Fala Gustavo! Tudo bem?

So, were you able to make it work? Can you show us your final code?

[fred rosenberger]

i'm guessing your code still doesn't quite do what you want.

In fact, It gives me a compilation error. Remember than an array is a CONTAINER of things, not the things themselves. If you had an egg carton full of eggs, you don't try and put the carton into your cake batter, but some of the things inside the container.

[Gustavo Siqueira]

Grateful by response!
The problem resolved!
Thanks you all of JavaRanch!

[Campbell Ritchie]

A nearby thread suggests another way to create your array

int[] anArray = new int[] {100, 200, 300, 400, 500, 600, 700, 800, 900, 1000/*,*/};

The new int[] bit and the , shown in the /* */ comment are optional. If you don't have the declaration on the same line, then the new int[] bit becomes compulsory.

[Rob Spoor]

In this case a loop is also an easy way, as there is a pattern between the indexes and the values:

int[] anArray = new int[10];   
for (int i = 0; i < anArray.length; i++)
{
    anArray[i] = (i + 1) * 100;
}