importjava.util.Scanner;// Import the Scanner classclassMain{publicstaticvoidmain(String[]args){ScannermyObj=newScanner(System.in);// Create a Scanner objectSystem.out.println("Enter username");StringuserName=myObj.nextLine();// Read user inputSystem.out.println("Username is: "+userName);//...
io.FileNotFoundException; // Import this class to handle errors import java.util.Scanner; // Import the Scanner class to read text files public class ReadFile { public static void main(String[] args) { try { File myObj = new File("filename.txt"); Scanner myReader = new Scanner(my...
java.util.scanner的nextfloat（）或nextdouble（）方法可用于实现读取浮点输入的所需需求。
java.util.scanner的nextfloat（）或nextdouble（）方法可用于实现读取浮点输入的所需需求。
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Locale objects represent a language or country and they are used by a variety of Java classes to handle formatting and interpreting data.The easiest way to get a Locale object is by using one of the objects provided by attributes of the Locale class.myObj.useLocale(Locale.GERMANY));...