CODEWITHSUNDEEP
javaarraysfor-loop
JohnnyC
JohnnyC

Reputation: 67

JAVA: Populating an array then display using for loop

I'm trying to populate an array [C], then display it using a for loop.. I'm new to arrays and this is confusing the hell out of me, any advice is appreciated!

Below is my code:

public static void main(String[] args) {

    int A[] = new int[5];
    int B[] = new int[5];
    String C[] = new String[5];
    int D[] = new int[5];

    C[] = {"John", "Cook", "Fred"};
    for(String name: C)
        System.out.println(C);
    }}

Upvotes: 1

Views: 145

Answers (5)

Johan Rovala
Johan Rovala

Reputation: 174

Try specifying at what index you want to add the element.

Example: 

C[0] = "hej";

Also, print the element in the array, not the actual array. (System.out.println(name);)

Upvotes: 0

51j0
51j0

Reputation: 51

 for(int i=0;i<=2;i++){
    System.out.println(C[i]);
    }

here 2 is the last index of the array C

You cannot simply print an array you have to provide an index to your item

where C[0] is john and C[1] is Cook and so on

and if you want to use a for each loop then this is how it goes

for(Iterator<String> i = someList.iterator(); i.hasNext(); ) {
    String item = i.next();
    System.out.println(item);
}

Upvotes: 0

EDToaster
EDToaster

Reputation: 3180

C is the name of the array, while name is the name of the String variable. Therefore you must print name instead of C

   System.out.println(name);

Upvotes: 0

Neil Masson
Neil Masson

Reputation: 2689

You want to print name instead of C.

Upvotes: 0

mk.
mk.

Reputation: 11740

You can define and populate an array in two ways. Using literals:

    String c[] = {"John", "Cook", "Fred"};
    for(String name : c) { // don't forget this { brace here!
        System.out.println(name); // you want to print name, not c!
    }

Or by setting each index element:

    int d[] = new int[2];
    d[0] = 2;
    d[1] = 3;
    for(int num: d) {
        System.out.println(num);
    }

(You can only use the literal when you first define the statement, so 

    String c[];
    c = {"John", "Cook", "Fred"};

Will cause an "illegal start of expression" error.)

Upvotes: 1

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