How to return more than one value in java

Can you return multiple values in Java?

As per Java Language Specification, the methods in Java can return only one value at a time. So returning multiple values from a method is theoretically not possible in Java.

How do you return more than one value?

We can return more than one values from a function by using the method called “call by address”, or “call by reference”. In the invoker function, we will use two variables to store the results, and the function will take pointer type data. So we have to pass the address of the data.

How do I return more than one string in Java?

No you cannot return more than one value. But you can send an array of strings containing all those strings. return new String[] {card, card2, card3, card5, card5};

How do I return multiple objects in Java?

If you want to return two objects you usually want to return a single object that encapsulates the two objects instead. Then you can easily return a List<NamedObject<WhateverTypeYouWant>> .

How can I return two values?

We can use following solutions to return multiple values.

  1. If all returned elements are of same type.
  2. If returned elements are of different types.
  3. Using Pair (If there are only two returned values) We can use Pair in Java to return two values.
  4. If there are more than two returned values. …
  5. Returning list of Object Class.

Can a method have two return types in Java?

No, you don’t have two return types. It’s a generic method you are seeing.

Is it bad to have multiple return statements?

Multiple return statements in a method will cause your code not to be purely object-oriented. Here you’ll find an example where you can use a clean OOP approach instead of using multiple returns. … The answer may surprise you: In a pure object-oriented world, a method must have a single return statement and nothing else.

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Can return statement return multiple values?

You can’t return two values. However, you can return a single value that is a struct that contains two values. You can return only one thing from a function. Either you make a struct which contains all the things you want to return, or you pass some function parameters by reference.

Can a function return more than one value python?

Python functions can return multiple values. These values can be stored in variables directly. A function is not restricted to return a variable, it can return zero, one, two or more values. … For returning multiple values from a function, we can return tuple, list or dictionary object as per our requirement.2 мая 2019 г.

How do you return a value from one method to another in Java?

Returning Value From the Method :

  1. We can specify return type of the method as “Primitive Data Type” or “Class name”.
  2. Return Type can be “Void” means it does not return any value.
  3. Method can return a value by using “return” keyword.

Can we return an array in Java?

We can return an array in Java from a method in Java. Here we have a method createArray() from which we create an array dynamically by taking values from the user and return the created array.

How do you return a pair in Java?

Pair Class in Java

  1. Pair (K key, V value) : Creates a new pair.
  2. boolean equals() : It is used to compare two pair objects. …
  3. String toString() : This method will return the String representation of the Pair.
  4. K getKey() : It returns key for the pair.
  5. V getValue() : It returns value for the pair.
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How do you return an ArrayList in Java?

add(11); numbers. add(3); return(numbers); } } public class T{ public static void main(String[] args){ Test t = new Test(); ArrayList<Integer> arr = t. myNumbers(); // You can catch the returned integer arraylist into an arraylist. } }

How many objects can be returned at once?

Explanation: Only one object can be returned at a time. This is because a function is only capable of returning a single value at a time. Though array of objects can be returned from a function.

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