Java 从用户输入打印时出错

我有一个用Eclipse编写的简单JAVA程序，我正在使用它作为一个更大程序的构建块，由于某种原因，System.out.println出现了一个错误

提前谢谢

错误：类型PrintStream中的println（String）方法不适用于参数（String，String，String）

代码：

package UserInfo;

import java.util.*;
import java.util.Scanner.*;
import java.awt.*;
import javax.swing.*;
import java.io.*;

public class UserInfo {

    public UserInfo() {
        // TODO Auto-generated constructor stub
    }

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        System.out.println ("This program will gather your personal information. \n\n");

        Scanner userInput = new Scanner (System.in);

        System.out.println ("Enter your first name: ");
        String firstName = userInput.nextLine();

        System.out.println ("Enter your last name: ");
        String lastName = userInput.nextLine();

        System.out.println ("Enter your street address: ");
        String addressStreet = userInput.nextLine();

        System.out.println ("Enter your city: ");
        String addressCity = userInput.nextLine();

        System.out.println ("Enter your two letter state abbreviation (ex:TN): ");
        String addressState = userInput.nextLine();

        System.out.println ("Enter your 5 digit zip code: ");
        Integer addressZip = userInput.nextInt();
/*
        System.out.printf ("Enter your phone number (ex: 1234567890): ");
        Integer addressPhone = userInput.nextInt();
*/      
        String addressQualified = (addressStreet + "\n" + addressCity + "" + addressState + ", " + addressZip + "\n");
        String nameQualified = firstName + "" + lastName + "\n";

        System.out.println ("User: ", nameQualified, "\n"); **//Error here**
        System.out.println ("Users Address: ", addressQualified, "\n"); **//Error here**
        //System.out.printf ("User Phone: ", addressPhone, "\n");

    }

}

语法错误，它是“+”而不是“，”

“+”用于串接字符串

---

“，”用于分隔方法的不同参数。

正如它所说的，对于具有三个字符串参数的

System.out.println

，没有方法。您可能打算这样做：

System.out.println ("User: " + nameQualified + "\n");
System.out.println ("Users Address: " + addressQualified + "\n");
//System.out.printf ("User Phone: " + addressPhone + "\n");

正如您所知，参数（也称为参数）在方法调用中用逗号分隔。你可以看到这就是为什么你要给这个方法三个参数

---

+

将字符串连接在一起，如您所愿。

语法错误，需要使用+符号连接

System.out.println ("User: ", nameQualified, "\n"); **//Error here**

正如错误所说，println只接受1个input/arg/param。因此，将输入转换为1字符串，如下所示：

System.out.println ("User: " + nameQualified + "\n"); 

更多信息请点击此处：

---

这不是System.out.println（）的正确格式。println（）接受字符串参数。您已经提供了三个字符串参数。尝试这样做：System.out.println（“用户：“+nameQualified+”\n”）；

System.out.println ("User: " + nameQualified + "\n");