Java 不确定如何正确使用该方法

我想使用.nextInt从扫描仪获取输入并将其发送到下面的方法，但我不确定如何进行

// Method to check the user has enter an integer
 static int checkValidInput ( Scanner scan)
{
    while (!scan.hasNextInt()) // 
    {
        scan.next(); // if the input is not an integer it is discarded.

        System.out.println("You did not enter a integer"); // the question is asked again until the right value is entered
    }   

    return scan.nextInt(); // the integer entered is returned to the statement that called the method
}

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您的方法返回整数值，因此请将其指定给变量，或按您希望的方式使用。我对扫描仪部分感到困惑，正在尝试checkValidInputscan.nextInt；

int age = checkValidInput(scan);