tostring

printing out objects within objects stored in different arrays using toString (java)

由 旧城冷巷雨未停 提交于 2019-12-25 03:01:01
问题 I'm having the most difficult time trying to output a list of all clubs and have the people who are in that club displayed under it, but it displays all people for each club instead. I know the problem lies within the nested for loop because when it gets to the second for loop, it goes to the personArray with a new index value and prints out all the people. How do I get it so that it prints only the contents of clubArray[0] , then for clubArray[1] it will pick up where it left off in the

201521123065 《Java程序设计》第4周学习总结

由 放肆的年华 提交于 2019-12-24 23:06:09
1. 本周学习总结 1.1 尝试使用思维导图总结有关继承的知识点。 1.2 使用常规方法总结其他上课内容 类设计：属性设计类型为priate并初始化。 文档注释：以/*开始，以*/结束。 继承：存在的本身是为了减少重复代码以免冗长增加不便； 单继承性，并继承所有成员； 出现覆盖时用supper调用父类，会根据对象的类型来选择进行父类或子类的函数； 创建子类时父类构造函数自动调用； 覆盖与重载的区别：覆盖是子类重新定义父类已存在的函数或进行更改，重载是同一个类中一样的函数名不一样的名称。 final与abstract:final不能被继承，final修饰的类没有子类，因此不能引用此类的对象； abstract必须被继承，与final相反，不能new创建实例。 抽象方法：抽象方法的类一定是抽象类，抽象类的方法不一定都是抽象方法。 object:toString-默认调用，一般自定义覆盖； equal-判断对象是否有相同引用； hashCode-将对象插入散列表，equal方法改变也须改变哈希方法。 2. 书面作业 1、注释的应用 使用类的注释与方法的注释为前面编写的类与方法进行注释，并在Eclipse中查看。(截图) 类的注释： 方法的注释： 2、面向对象设计 2.1 将在网上商城购物或者在班级博客进行学习这一过程，描述成一个故事。（不得少于50字，参考QQ群中PPT的范例） a

How to convert an IEnumerable into a string to put it in a message box in c#? [duplicate]

由 倖福魔咒の 提交于 2019-12-24 18:46:06
问题 This question already has answers here : How to convert IEnumerable<string> to one comma separated string? (6 answers) Closed 5 months ago . I have an IEnumerable which contains differences of two files. I want to show these differences in a message box. I tried to convert it with the toArray() method and with the toString() method. IEnumerable<String> inFirstNotInSecond = file1Lines.Except(file2Lines); IEnumerable<String> inSecondNotInFirst = file2Lines.Except(file1Lines); //i also tried

Within the standard JavaScript ES6 environment, when is .toString() ever called?

由 余生颓废 提交于 2019-12-24 17:12:30
问题 I only found that the time .toString() is called is with string concatenation and string interpolation: // Inside of Node: > let arr = [1,3,5]; > arr.toString() '1,3,5' > "" + arr '1,3,5' > arr + "" '1,3,5' > `${arr}` '1,3,5' Supposedly, console.log prints out the string representation of the object and is supposed to use toString() , but I am not sure whether it is toString() not properly implemented usually, so console.log does something else: > console.log(arr); [ 1, 3, 5 ] > console.log(

BigInteger.ToString() returns more than 50 decimal digits

由 本秂侑毒 提交于 2019-12-24 16:22:49
问题 I'm using .NET 4 System.Numerics.BigInteger Structure and I'm getting results different from the documentation. In the documentation of BigInteger.ToString() Method It says: The ToString() method supports 50 decimal digits of precision. That is, if the BigInteger value has more than 50 digits, only the 50 most significant digits are preserved in the output string; all other digits are replaced with zeros. I have some code that takes a 60 decimal digits BigInteger and converts it to a string .

using the toString method to display information in an arraylist without brackets and commas

由 北城余情 提交于 2019-12-24 15:37:17
问题 I am using a toString method to display data in an arraylist. How do I write the code so that it displays the information without the [ , , ] around my information see the code below: case 6: System.out.println("Enter an account number to view the transactions of the account"); number=keyboard.nextLong(); found=false; try{ for(int i=0;i<aBank.getAccounts().size();i++){ if(aBank.getAccounts().get(i).getAccountNumber().compareTo(number)==0){ found=true; System.out.println("Account " + number +

Configure velocity to render an object with something other than toString?

由 回眸只為那壹抹淺笑 提交于 2019-12-24 10:39:37
问题 Is there a way to configure Velocity to use something other than toString() to convert an object to a string in a template? For example, suppose I'm using a simple date class with a format() method, and I use the same format every time. If all of my velocity code looks like this: $someDate.format('M-D-yyyy') is there some configuration I could add that would let me just say $someDate instead? (Assuming I'm not in a position to just edit the date class and give it an appropriate toString()). I

showing the object instead of string

由 元气小坏坏 提交于 2019-12-24 03:06:50
问题 Here i m attaching snap of my problem and code for that. it shows me only the content as object but shows groupname perfectly. the snap for this problem is given in as below link just go throught this image "http://imageupload.org/?d=4DA941521"(snapshot) => I want child data of particular groupname but i m getting groupname instead of child data. code for this package com.bestdambikers; import android.app.ListActivity; import android.content.Context; import android.os.Bundle; import android

arrays.toString() custom formatting

由 泪湿孤枕 提交于 2019-12-24 01:43:08
问题 How can I change the output from [ua, disclaimer, ok, ua, navigation, fault, ua, fault, previous, ua, fault, previous] to this ua, disclaimer, ok ---> ua, navigation, fault ---> ua, fault, previous ---> ua, fault, previous by varying this print statement System.out.println(Arrays.toString(arr)) 回答1: by writing your own print method. something like this: public static String fancyPrint(Object... array) { StringBuilder output = new StringBuilder(); int total = 0; for (Object o : array) { output

include into Lombok ToString field from another object

由 江枫思渺然 提交于 2019-12-23 18:42:32
问题 I have this POJOs //@ToString(of = { "id", "name", "employee.id - not working" }) @ToString(of = { "id", "name", "employee - working" }) public class Company { private int id; private String name; @OneToMany(mappedBy="company") private Set<Employee> employee; } public class Employee{ private int id; private String name; @ManyToOne private Company company; } how can I print just id from object employee ? I do not want to print whole object employee , just one field. Thank you 回答1: You have
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