课程: Java Essential Training: Syntax and Structure

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Returning data from methods

Returning data from methods - Java教程

课程: Java Essential Training: Syntax and Structure

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Returning data from methods

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- [Instructor] Often the role of a method is to perform a task and then return the result of that task. Let's refactor this isUserQualified method to return a boolean value of true or false and have another method notify the user. If a method is going to return a value, it must indicate that in its header. IsUserQualified currently has a return type of void, meaning it does not return anything. Let's change this to boolean. Within the if block, if the conditions are met we can add a statement that returns true. Likewise, if the condition is not met, we can return false. Now let's revisit the main method. When calling a method that returns a value, you can receive that value and store it into a variable although this is not required. We've already done this without even knowing it. On line 18, we call it the next double method and stored it's return value into the actual salary variable. Let's do same when calling…

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