CODEWITHSUNDEEP
javaarrays
tucker19
tucker19

Reputation: 336

Can Multidimensional Arrays how two different types in them within java

Can a multidimensional array in java have two types like a string and double in it?

Like: {name, num},{name, num}

Upvotes: 1

Views: 246

Answers (4)

deanosaur
deanosaur

Reputation: 611

This solution has nothing to do with arrays, but if you've got {name, num}, {name, num} data, you might want to consider using a map. 

Map<String, Double> map = new HashMap<String, Double>();

Double valueX = 123.456;
Double valueY = 654.321;
map.put("nameX", valueX);
map.put("nameY", valueY);

Double valueX = c.get("name");
for(String name:c.keySet()) {
   System.out.println("name:"+name+"\tvalue:"+c.get(name));
}

Upvotes: 0

Zoyd
Zoyd

Reputation: 3559

In Java, this is normally done with a class.

class C {
public String name;
public int num;
}

(later)

C[] myArray = new C[5];
myArray[3] = new C();
myArray[3].name = "Ford";
myArray[3].num = 42;

name and num should typically be made private and accessed with getters and setters, but this is beyond the point.

Upvotes: 2

user3503758
user3503758

Reputation: 77

    int row=10;
    int col=10;

    Object [][] objArray=new Object[row][col];

    objArray[0][0]=181818;
    objArray[0][1]="Hello String";

    System.out.println(objArray[0][0]);     
    System.out.println(objArray[0][1]);

You can use Object for that.

Plus you need to search before you post it. There is already answer here. Two-dimensional array of different types

Upvotes: 0

Cruncher
Cruncher

Reputation: 7812

Zoyd has it right, that this should be done with a class. Here's a more complete example.

class MyClass 
{
    private String name;
    private int num;

    public MyClass(String name, int num)
    {
        this.name = name;
        this.num = num;
    }

    public String getName()
    {
        return name;
    }

    public int getNum()
    {
        return num;
    }
}


MyClass[] array = new MyClass[5];
array[0] = new MyClass("name1", 5);
array[1] = new MyClass("name2", 8);
...

If name or num ever need to change after original creation, then you can add setters for them.

Upvotes: 2

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