How to implement setters and getters with String and int at the same time?

Question

I know how to "setValue" the "getValue" however how you do "getValue" in this case?

public void setInfo(String name, int age) {
    setName(name);
    setAge(age);
}

Is there a way to getInfo with string and int at the same time?

Break up the setter into two parts, one for the `name` and one for the `age`. — Tim Biegeleisen, Jun 14 '16 at 04:12
`return_type getName(){ }` and `return_type getAge(){ }`. `Ojbect o`, `o.getName();` and `o.getAge();` — Vy Do, Jun 14 '16 at 04:14

score 3 · Answer 1 · edited Jun 14 '16 at 04:59

As per code , what I assume that both name and age are part of the InfoObject, so you can return the whole object in getInfo() call, ex-

public InfoObject getInfo() {
    return infoObject();
}

Because you can not return two values from same function. If you don't want to use this way, In that case you have to write two seperate methods for name and age each. like:

public String getName() {
    return this.name;
}

and

public int getAge() {
    return this.age;
}

This way you can make your code clean and understandable.

score 1 · Answer 2 · answered Jun 14 '16 at 05:39

In some programming language such as swift ,there is "tuple" can return with two value at the same time.

However in the Java world you there is no official "tuple", but you can do something similar:

public class Pair<F, S> {
    public F first;
    public S second;
}

in your case:

Pair<String, Integer> mValue;

public void setInfo(String name, int age) {
    mValue = new Pair<String, Integer>(name, age);
}

public Pair<String, Integer> getInfo() {
    return mValue;
}

There is a popular library called javatuples. That can be used. — Jatin, Nov 29 '19 at 04:32

score 0 · Answer 3 · answered Jun 14 '16 at 04:17

0

You may try the following method:

public Object[] getValue(){
    return new Object[]{getName(), getAge()};
}

Hope, you already have methods like getName() and getAge() as you have setName(String name) and setAge(int age).

answered Jun 14 '16 at 04:17

Sanjeev Saha

2,632
1
12
19

1

That will lose compiler type-checking. – Andreas Jun 14 '16 at 04:40
1

Hi @ClaudioLopez do you need compile time type checking? If you need, you should go for a wrapper object containing `name` and `age`. – Sanjeev Saha Jun 14 '16 at 04:45
Hi @Andreas please have a look at the accepted answer. – Sanjeev Saha Jun 14 '16 at 04:46

score -1 · Accepted Answer · answered Jun 14 '16 at 04:16

-1

There are multiple ways, one is given below:

public Object[] getInfo() {
    Object[] info = new Object[2];
    info[0] = getName();
    info[1] = getAge();
    return info;
}

answered Jun 14 '16 at 04:16

Azodious

13,752
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That will lose compiler type-checking. – Andreas Jun 14 '16 at 04:47
1

I agree with @Andreas, You have to cast the result before using that, apart from that In my opinion, its not a good way of exposing the API to provide information to the other classes which will use this method. This API may little confusing to the other classes which are going to use it. – pbajpai Jun 14 '16 at 04:52

score -1 · Answer 5 · answered Jun 14 '16 at 04:25

-1

I usually use java.util.Map when i need to do that, for example:

private Map<String, Object> getInfo() {
    Map<String, Object> result;
    result.put("name", name);
    result.put("age", age);
    return result;
}

https://docs.oracle.com/javase/7/docs/api/java/util/Collections.html

answered Jun 14 '16 at 04:25

Emilio Navarrete Lineros

119
3

That will lose compiler type-checking. – Andreas Jun 14 '16 at 04:40

How to implement setters and getters with String and int at the same time?

5 Answers5