How can I return more than one value from a method in Java?

Can I return multiple values from a method in Java?

You can return only one value in Java. If needed you can return multiple values using array or an object.

How do you return more than one value?

You can return multiple values by bundling those values into a dictionary, tuple, or a list. These data types let you store multiple similar values. You can extract individual values from them in your main program. Or, you can pass multiple values and separate them with commas.

Can a method have multiple returns?

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. … All arguments in favor of multiple return statements go against the very idea of object-oriented programming.

How can I return two objects from a method 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>> .

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Can a method return an array?

A method can return a reference to an array. The return type of a method must be declared as an array of the correct data type.

Can we return a string in Java?

There’s no problem with returning Strings in this manner. In Java, a String is a reference to an immutable object.

Can function return more than one value in Plsql?

But we can use OUT parameter to return multiple value from a procedure. Similarly we can also return multiple value from a function by using TABLE type object. … We can also say that collection type object can be made as TABLE type object in oracle plsql. Here we are going to returns two column’s value from our function.

Can you return two variables in C++?

A C++ function can return only one value. However, you can return multiple values by wrapping them in a class or struct. Or you could use std::tuple , if that is available with your compiler.

Can a function return multiple values justify giving example?

A function is not restricted to return a variable, it can return zero, one, two or more values. This is the default property of python to return multiple values/variables which is not available in many other programming languages like C++ or Java.

Is it bad to have multiple returns in a function?

Dijkstra said that every function, and every block within a function, should have one entry and one exit. … So, if you keep your functions small, then the occasional multiple return, break, or continue statement does no harm and can sometimes even be more expressive then the single-entry, single-exit rule.”

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Can we have multiple return statements in function?

A function can have multiple return statements. When any of them is executed, the function terminates. A function can return multiple types of values.

What is the return type of a method that does not return any value?

What is the return type of a method that does not return any value? Explanation: Return type of a method must be made void if it is not returning any value. 2.

How do you return an Arraylist?

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. } }

Is pair immutable in Java?

An immutable pair consisting of two Object elements. Although the implementation is immutable, there is no restriction on the objects that may be stored. If mutable objects are stored in the pair, then the pair itself effectively becomes mutable.

Field Summary.

Modifier and Type Field and Description
R right Right object

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.