How to use return in java

What is return type in Java with example?

In Java, Return is a keyword which is used to exit from the method only with or without a value. Return type may be a primitive type like int, float, double, a reference type, or void type which represents “return nothing”. … i.e, they don’t give anything back.

What does return keyword do in Java?

The return keyword finished the execution of a method, and can be used to return a value from a method.

How do I return to Main in Java?

For what you need, you have a way available (you even used it in your subject): public static void main (String[] args) { hi(); // The return from hi() executes the next line of code System. out. println(“cake time!”); } public static void hi () { // Do whatever hi() does here.

Is void a return type?

In lieu of a data type, void functions use the keyword “void.” A void function performs a task, and then control returns back to the caller–but, it does not return a value. You may or may not use the return statement, as there is no return value.

Why do we use return in Java?

return is a reserved keyword in Java i.e, we can’t use it as an identifier. It is used to exit from a method, with or without a value. Methods returning a value : For methods that define a return type, return statement must be immediately followed by return value. …

Can you 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.

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What is a parameter in Java?

A parameter is a value that you can pass to a method in Java. Then the method can use the parameter as though it were a local variable initialized with the value of the variable passed to it by the calling method.

What is void in Java?

The void keyword specifies that a method should not have a return value.

Can a for loop return a value?

A return statement is NOT for returning a value from a loop. If you want to preserve a value from a loop, that value needs to be stored in a variable that was created before the loop was started. … Just remove the return a; statement and you should be able to do what you are trying to accomplish.

Is void a return type in Java?

The void Keyword

This method is a void method, which does not return any value. Call to a void method must be a statement i.e. methodRankPoints(255.7);. It is a Java statement which ends with a semicolon as shown in the following example.

What is return type in Java?

A return statement causes the program control to transfer back to the caller of a method. Every method in Java is declared with a return type and it is mandatory for all java methods. A return type may be a primitive type like int, float, double, a reference type or void type(returns nothing).

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.
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What is the return type of main method?

Java programming mandates that every method provide the return type. Java main method doesn’t return anything, that’s why it’s return type is void . This has been done to keep things simple because once the main method is finished executing, java program terminates.

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