小编moh*_*sar的帖子

因为我知道更好的做法是尽可能减少代码重复,所以我决定在整个类中只声明一个扫描程序,但是我应该在哪里关闭扫描程序对象,或者它不一定要关闭它,关闭扫描程序做什么呢？ .

  private Scanner scanner;
/**
 * Constructor for objects of class Scanner
 */
public Ssss()
{
    // initialise instance variables
     scanner = new Scanner(System.in);
}
public void enterYourName()
{
    System.out.println("Enter your Name");
    String name = scanner.nextLine();
    System.out.println("Your name is:" + name);
}
public void enterYourAge()
{
    System.out.println("Enter your Age");
    int age = scanner.nextInt();
        System.out.println("Your age is: " + age);
}

如何在print语句中编写if语句？

public boolean checkEmpty()
{
    if(array.isEmpty)
    {
        Sytem.out.println("The List is empty");
    }
    else
    {
        System.out.println("The list has: " +  if(array.size() > 1)) {"Items"} + else {"item"} );
    }
}