如何格式化Java中具有多种类型变量的单行的控制台输出

我的程序已经完成，但是我一直在尝试在打印方法

printQueueInfo

和

printStackInfo

时，如何格式化每个报告的输出。我已经在上面提到的每个方法中尝试了

System.out.printf

，其中我有

System.out.println

at，并将它放在

reportOne

和

reportTwo

方法中。下面我已经包括了输出应该是什么样子，以及我的代码实际是什么样子。感谢您的帮助

下面是代码的样子（请注意DVD/书是如何与价格一起排列的）：

下面是我当前的实际代码输出（请注意我的DVD/Book或价格是如何排列的）：

下面是我的代码：

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Scanner;
import java.util.Stack;

public class Project04 {

    private Customer customer;  
    private ArrayList<SimpleProduct> productList = new ArrayList<SimpleProduct>();
    private SimpleProduct product;  
    private Queue<SimpleProduct> stockedQueue = new LinkedList<SimpleProduct>();
    private Stack<SimpleProduct> unstockedStack = new Stack<SimpleProduct>();   
    private double subtotal;
    private double preShipTotal;
    private double shipTotal;
    private double shippingPercent;
    private boolean safeToAdd;

    /**
     * Customer constructor 
     * gets file information and distributes reports appropriately
     * 
     */
    public Project04() {
        //Get file from user
        String fileName = getUserFile();

        //place file contents in correct data structures
        allocateFileContents(fileName); 

        //print reports
        reportOne();
        reportTwo();
    }

    /**
     * @return String file name that contains order database.
     */
    private String getUserFile(){   
        System.out.println("Please enter database file name: ");
        Scanner inFile = new Scanner(System.in);        
        String fileName = inFile.nextLine();
        return fileName;
    }

    /**
     * @param fileName
     * appropriately allocates contents of file to customer info, stocked queue, and unstocked stack
     */
    private void allocateFileContents(String fileName){
        Scanner input = null;
        int i = 0;
        try {
            input = new Scanner(new File(fileName));
            if((i == 0) && (! input.hasNext())){
                System.out.println("Error: Empty text file. Exiting system.");
                System.exit(0);
            }
            while (input.hasNextLine()) {

                //if scanner has read past customer info
                if (i >= 7) {
                    product = new SimpleProduct(input);
                    this.safeToAdd = true;
                    for (int p = 0; p < productList.size(); p++){
                        if (product.equals(productList.get(p).getName(), productList.get(p).getType())){
                            this.safeToAdd = false;
                        }
                    }

                    if (this.safeToAdd == true){
                        productList.add(product);

                        // in stock?
                        if (product.getInStock() == true) {
                            // add to FIFO queue
                            stockedQueue.add(product);
                        } else { 
                            // add to stack
                            unstockedStack.push(product);
                        }

                    i = i + 5;
                    }
                //if customer info
                } else {
                    customer = new Customer(input);
                    i = i + 7;
                }

            }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            System.out.println("Error: file not found. Exiting System. ");
            System.exit(0);
        }
    }

    /**
     * prints report with in-stock items to be shipped
     */
    private void reportOne(){
        System.out.println("");
        System.out.println("Shipping to:");
        //print address
        generateAddress();      
        System.out.println("-------------------------------------------------");
        //print queue info      
        printQueueInfo();
        System.out.println("-------------------------------------------------");
        System.out.format("Subtotal:                  $%.2f%n", this.subtotal);     
        System.out.format("Sales tax: (%.2f)                  $%.2f%n", customer.getTax(),
                (customer.getTax() * this.subtotal));   
        //get shipping 
        calculateShippingTotal();   
        System.out.format("Shipping:                  $%.2f%n", this.shipTotal);
        System.out.println("-------------------------------------------------");
        System.out.format("Total:                    $%.2f%n", (this.shipTotal + this.preShipTotal));
        System.out.println("-------------------------------------------------");
    }

    /**
     * Print queue product information and 
     * @return subtotal
     */
    public double printQueueInfo(){
            this.subtotal = 0;  
            int stockedQueueSize = stockedQueue.size();
            SimpleProduct current;
            for (int i = 0; i < stockedQueueSize; i++) {
                //pop from queue, assign local variable, and get info
                current = stockedQueue.remove();    
                double sub = current.getQuantity() * current.getPrice(); 
                System.out.println(current.getQuantity() + " x "
                        + current.getName() + " (" + current.getType() + ") "
                        + current.getPrice());
                this.subtotal = sub + this.subtotal;
            }
            return this.subtotal;
    }

    /**
     * calculate total cost with shipping
     */
    public void calculateShippingTotal(){
        this.preShipTotal = (this.subtotal * customer.getTax()) + this.subtotal;

        if (this.preShipTotal > 25) {
            this.shippingPercent = 0;
        } else if (this.preShipTotal > 10) {
            this.shippingPercent = .05;
        } else {
            this.shippingPercent = .15;
        }   
        this.shipTotal = this.shippingPercent * this.preShipTotal;
    }


    /**
     * prints report with items that are on hold, along with outstanding balance
     */
    private void reportTwo(){
        System.out.println("");
        System.out.println("Orders Outstanding For:");
        //print address
        generateAddress();
        System.out.println("-------------------------------------------------");
        //print stack info
        printStackInfo();   
        System.out.println("-------------------------------------------------");    
        System.out.format("Outstanding balance:             $%.2f%n", this.subtotal);
        System.out.println("-------------------------------------------------");
    }

    /**
     * prints on-hold items with product info
     */
    public void printStackInfo(){
        this.subtotal = 0;
        int unstockedStackSize = unstockedStack.size();
        SimpleProduct unstocked;
        double sub; 
        for (int i = 0; i < unstockedStackSize; i++) {
            unstocked = unstockedStack.pop();
            sub = unstocked.getQuantity() * unstocked.getPrice(); 
            System.out.println(unstocked.getQuantity() + " x "
                    + unstocked.getName() + " (" + unstocked.getType() + ") "
                    + unstocked.getPrice());
            this.subtotal = sub + this.subtotal;
        }
    }

    /**
     * prints out customer address
     */
    public void generateAddress(){
        //System.out.println("");
        System.out.println("        " + customer.getFirst() + " " + customer.getLast());
        System.out.println("        " + customer.getStreet());
        System.out.println("        " + customer.getCity() + ", " + customer.getState()
                + " " + customer.getZip());
        //System.out.println("");
    }

    public static void main(String[] args) {

        Project04 project04 = new Project04();

    }

}

导入java.io.File；
导入java.io.FileNotFoundException；
导入java.util.ArrayList；
导入java.util.LinkedList；
导入java.util.Queue；
导入java.util.Scanner；
导入java.util.Stack；
公开课项目04{
私人客户；
private ArrayList productList=new ArrayList（）；
私有SimpleProduct产品；
private Queue stockedQueue=new LinkedList（）；
私有堆栈unstockedStack=新堆栈（）；
私人双倍小计；
私人双倍装运前总额；
私人双船道达尔；
私人双倍运费；
私有布尔安全添加；
/**
*客户建造师
*获取文件信息并适当分发报告
* 
*/
公共工程04(){
//从用户获取文件
字符串文件名=getUserFile（）；
//将文件内容放在正确的数据结构中
AllocateFileContent（文件名）；
//打印报告
reportOne（）；
报告二（）；
}
/**
*@返回包含订单数据库的字符串文件名。
*/
私有字符串getUserFile（）{
System.out.println（“请输入数据库文件名：”）；
扫描仪填充=新扫描仪（System.in）；
字符串文件名=infle.nextLine（）；
返回文件名；
}
/**
*@param文件名
*适当地将文件内容分配给客户信息、库存队列和未库存堆栈
*/
私有void allocateFileContent（字符串文件名）{
扫描仪输入=空；
int i=0；
试一试{
输入=新扫描仪（新文件（文件名））；
如果（（i==0）和（！input.hasNext（））{
System.out.println（“错误：空文本文件。正在退出系统”）；
系统出口（0）；
}
while（input.hasNextLine（））{
//如果扫描仪已读取过去的客户信息
如果（i>=7）{
产品=新的SimpleProduct（输入）；
this.safeToAdd=true；
对于（int p=0；pPlease enter database file name: 
lab4_input.txt

Shipping to:
        Bob Fakename
        123 Fake Street
        Fake City, FS 99999
-------------------------------------------------
1 x The Shawshank Redemption (DVD) 19.95
1 x The Dark Knight (DVD) 19.95
1 x The Girl With The Dragon Tattoo (Book) 14.95
1 x Under The Dome (Book) 19.95
-------------------------------------------------
Subtotal:                 $74.80
Sales tax: (0.07)                 $5.24
Shipping:                 $0.00
-------------------------------------------------
Total:                   $80.04
-------------------------------------------------

Orders Outstanding For:
        Bob Fakename
        123 Fake Street
        Fake City, FS 99999
-------------------------------------------------
1 x Iron Man (DVD) 19.95
3 x Lego Ultimate Building Set (Toy) 29.95
1 x Dracula (Book) 4.95
-------------------------------------------------
Outstanding balance:            $114.75
-------------------------------------------------

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Scanner;
import java.util.Stack;

public class Project04 {

    private Customer customer;  
    private ArrayList<SimpleProduct> productList = new ArrayList<SimpleProduct>();
    private SimpleProduct product;  
    private Queue<SimpleProduct> stockedQueue = new LinkedList<SimpleProduct>();
    private Stack<SimpleProduct> unstockedStack = new Stack<SimpleProduct>();   
    private double subtotal;
    private double preShipTotal;
    private double shipTotal;
    private double shippingPercent;
    private boolean safeToAdd;

    /**
     * Customer constructor 
     * gets file information and distributes reports appropriately
     * 
     */
    public Project04() {
        //Get file from user
        String fileName = getUserFile();

        //place file contents in correct data structures
        allocateFileContents(fileName); 

        //print reports
        reportOne();
        reportTwo();
    }

    /**
     * @return String file name that contains order database.
     */
    private String getUserFile(){   
        System.out.println("Please enter database file name: ");
        Scanner inFile = new Scanner(System.in);        
        String fileName = inFile.nextLine();
        return fileName;
    }

    /**
     * @param fileName
     * appropriately allocates contents of file to customer info, stocked queue, and unstocked stack
     */
    private void allocateFileContents(String fileName){
        Scanner input = null;
        int i = 0;
        try {
            input = new Scanner(new File(fileName));
            if((i == 0) && (! input.hasNext())){
                System.out.println("Error: Empty text file. Exiting system.");
                System.exit(0);
            }
            while (input.hasNextLine()) {

                //if scanner has read past customer info
                if (i >= 7) {
                    product = new SimpleProduct(input);
                    this.safeToAdd = true;
                    for (int p = 0; p < productList.size(); p++){
                        if (product.equals(productList.get(p).getName(), productList.get(p).getType())){
                            this.safeToAdd = false;
                        }
                    }

                    if (this.safeToAdd == true){
                        productList.add(product);

                        // in stock?
                        if (product.getInStock() == true) {
                            // add to FIFO queue
                            stockedQueue.add(product);
                        } else { 
                            // add to stack
                            unstockedStack.push(product);
                        }

                    i = i + 5;
                    }
                //if customer info
                } else {
                    customer = new Customer(input);
                    i = i + 7;
                }

            }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            System.out.println("Error: file not found. Exiting System. ");
            System.exit(0);
        }
    }

    /**
     * prints report with in-stock items to be shipped
     */
    private void reportOne(){
        System.out.println("");
        System.out.println("Shipping to:");
        //print address
        generateAddress();      
        System.out.println("-------------------------------------------------");
        //print queue info      
        printQueueInfo();
        System.out.println("-------------------------------------------------");
        System.out.format("Subtotal:                  $%.2f%n", this.subtotal);     
        System.out.format("Sales tax: (%.2f)                  $%.2f%n", customer.getTax(),
                (customer.getTax() * this.subtotal));   
        //get shipping 
        calculateShippingTotal();   
        System.out.format("Shipping:                  $%.2f%n", this.shipTotal);
        System.out.println("-------------------------------------------------");
        System.out.format("Total:                    $%.2f%n", (this.shipTotal + this.preShipTotal));
        System.out.println("-------------------------------------------------");
    }

    /**
     * Print queue product information and 
     * @return subtotal
     */
    public double printQueueInfo(){
            this.subtotal = 0;  
            int stockedQueueSize = stockedQueue.size();
            SimpleProduct current;
            for (int i = 0; i < stockedQueueSize; i++) {
                //pop from queue, assign local variable, and get info
                current = stockedQueue.remove();    
                double sub = current.getQuantity() * current.getPrice(); 
                System.out.println(current.getQuantity() + " x "
                        + current.getName() + " (" + current.getType() + ") "
                        + current.getPrice());
                this.subtotal = sub + this.subtotal;
            }
            return this.subtotal;
    }

    /**
     * calculate total cost with shipping
     */
    public void calculateShippingTotal(){
        this.preShipTotal = (this.subtotal * customer.getTax()) + this.subtotal;

        if (this.preShipTotal > 25) {
            this.shippingPercent = 0;
        } else if (this.preShipTotal > 10) {
            this.shippingPercent = .05;
        } else {
            this.shippingPercent = .15;
        }   
        this.shipTotal = this.shippingPercent * this.preShipTotal;
    }


    /**
     * prints report with items that are on hold, along with outstanding balance
     */
    private void reportTwo(){
        System.out.println("");
        System.out.println("Orders Outstanding For:");
        //print address
        generateAddress();
        System.out.println("-------------------------------------------------");
        //print stack info
        printStackInfo();   
        System.out.println("-------------------------------------------------");    
        System.out.format("Outstanding balance:             $%.2f%n", this.subtotal);
        System.out.println("-------------------------------------------------");
    }

    /**
     * prints on-hold items with product info
     */
    public void printStackInfo(){
        this.subtotal = 0;
        int unstockedStackSize = unstockedStack.size();
        SimpleProduct unstocked;
        double sub; 
        for (int i = 0; i < unstockedStackSize; i++) {
            unstocked = unstockedStack.pop();
            sub = unstocked.getQuantity() * unstocked.getPrice(); 
            System.out.println(unstocked.getQuantity() + " x "
                    + unstocked.getName() + " (" + unstocked.getType() + ") "
                    + unstocked.getPrice());
            this.subtotal = sub + this.subtotal;
        }
    }

    /**
     * prints out customer address
     */
    public void generateAddress(){
        //System.out.println("");
        System.out.println("        " + customer.getFirst() + " " + customer.getLast());
        System.out.println("        " + customer.getStreet());
        System.out.println("        " + customer.getCity() + ", " + customer.getState()
                + " " + customer.getZip());
        //System.out.println("");
    }

    public static void main(String[] args) {

        Project04 project04 = new Project04();

    }

}