I'm running Jenkins CI inside a corporate network which uses a proxy for internet access. I tried to configure proxy details in Plugins->Advanced, but even though the credentials are correct (yeah, I checked it a bunch of times), it cannot validate "Test URL" even on http://google.com and returns Failed to connect to http://google.com (code 407). Strangely, Jenkins is still
我在使用代理访问互联网的企业网络中运行Jenkins CI 。 我尝试在插件 - >高级配置代理详细信息，但即使凭据是正确的（是的，我检查了很多次），即使在http://google.com上也无法验证“测试URL”，并返回 无法连接到http://google.com（代码407）。 奇怪的是，詹金斯仍然能够自己下载插件（whoa！），但完全无法连接到任何HTTP资源。 从控制台输出的消息是： ←[0mApr 16，2015 1:58:56 PM org.apache.commons.httpclien
Problem: Java program to split the coefficients from a quadratic equation eg if input string is: String str1; str1 = "4x2-4x-42=0" So I need to split the coefficients from the given input string and to get output as a = 4 b = -4 c = -42 I tried this: String equation = "ax2+bx-c=0"; String[] parts = equation.split("\+|-|="); for (int i = 0; i < parts.length - 2; i++) { String part = pa
问题：Java程序将系数从二次方程中拆分，例如，如果输入字符串是： String str1; str1 = "4x2-4x-42=0" 所以我需要分割给定输入字符串的系数并得到输出 a = 4 b = -4 c = -42 我试过这个： String equation = "ax2+bx-c=0"; String[] parts = equation.split("\+|-|="); for (int i = 0; i < parts.length - 2; i++) { String part = parts[i].toLowerCase(); System.out.println(part.substring(0, part.indexOf
Why doesn't the compiler automatically put break statements after each code block in the switch? Is it for historical reasons? When would you want multiple code blocks to execute? Sometimes it is helpful to have multiple cases associated with the same code block, such as case 'A': case 'B': case 'C': doSomething(); break; case 'D': case 'E': doSomethingElse(); break; et
为什么编译器不会在交换机中的每个代码块之后自动放置break语句？ 这是出于历史原因吗？ 你什么时候想要执行多个代码块？ 有时，将多个案例与相同的代码块相关联会很有帮助，例如 case 'A': case 'B': case 'C': doSomething(); break; case 'D': case 'E': doSomethingElse(); break; 等等。只是一个例子。 根据我的经验，通常情况下“跌倒”的风格很糟糕，并且有一个代码执行多个代码块，但在某些情况
This question already has an answer here: Why can't I switch on a String? 14 answers As far as I know, this is okay: public static void sortData(short days[], String name[]) { char choice; Scanner kd = new Scanner(System.in); System.out.println("a. Sort by Namenb. Sort by Day"); choice = kd.next().toCharArray()[0]; switch (choice) { case 'a': // do some
这个问题在这里已经有了答案： 为什么我不能打开一个字符串？ 14个答案 据我所知，这是好的： public static void sortData(short days[], String name[]) { char choice; Scanner kd = new Scanner(System.in); System.out.println("a. Sort by Namenb. Sort by Day"); choice = kd.next().toCharArray()[0]; switch (choice) { case 'a': // do something break; case 'b'
Possible Duplicate: Switch Statement with Strings in Java Ok, basically i want to know if this is possible and how to do it. I have a menu and i want this switch statement to recognize chars or a string that was entered by the user. I have a little menu program that I am writing: import java.util.*; import java.io.*; import java.io.File; import java.io.FileReader; public class Personnel
可能重复： 在Java中使用字符串切换语句 好的，基本上我想知道这是否可能以及如何去做。 我有一个菜单，我希望这个switch语句能够识别用户输入的字符或字符串。 我正在编写一个小菜单程序： import java.util.*; import java.io.*; import java.io.File; import java.io.FileReader; public class Personnel { // Instance Variables private static String empName; private static double wage; publ
This question already has an answer here: Why can't I switch on a String? 14 answers Can switch statement take objects or not? No you can't use any arbitrary object in switch statements. This is specified in the language itself. Even String is only allowed from Java 7 onwards. From JLS §14.11: The type of the Expression must be char , byte , short , int , Character , Byte , Sh
这个问题在这里已经有了答案： 为什么我不能打开一个字符串？ 14个答案 可以切换语句拿对象还是不？ 不，你不能在switch语句中使用任何任意对象。 这是在语言本身中指定的。 即使String也只能从Java 7开始。 从JLS§14.11： Expression的类型必须是char ， byte ， short ， int ， Character ， Byte ， Short ， Integer ， String或enum类型（第8.9节），否则会发生编译时错误。 带有字符串的switch语句使用hash
Possible Duplicate: Switch Statement with Strings in Java Im using the following code and I wonder if there is a way to do it with switch , the reason that I don't use it as default since type name is type string.(I know that this option is supported in 1.7 version but I need to use 1.6) There is a way to overcome this problem ? public static SwitchInputType<?> switchInput(String t
可能重复： 在Java中使用字符串切换语句 我使用下面的代码，我不知道是否有办法做到这一点与开关，我不使用它作为默认的原因，因为类型名称是类型字符串。（我知道这个选项是支持1.7版本，但我需要使用1.6）有办法解决这个问题吗？ public static SwitchInputType<?> switchInput(String typeName) { if (typeName.equals("Binary")) { return new SwitchInputType<Byte>(new Byte("23ABFF
This question already has an answer here: Why can't I switch on a String? 14 answers Usually language design questions boil down to "because that's the way the designers decided to do it." This is just another of those times. But Java has some origins in C, which did the same thing, and in the 80's that decision was explained to me as being because then the compiler
这个问题在这里已经有了答案： 为什么我不能打开一个字符串？ 14个答案 通常语言设计问题归结为“因为这是设计师决定这样做的方式。” 这只是另一个时代。 但Java在C语言中有一些起源，他们做了同样的事情，并且在80年代，这个决定被解释为是因为编译器可以将开关转换成跳转表：基本上，每个代码块的地址块都放在表和switch成为范围检查，然后使用您传入的值获取地址，然后跳转到该地址，然后进行表查找（通常索引到数组或
Possible Duplicate: Switch Statement with Strings in Java I am trying to use switch statement on String but it gives compilation error. If any one suggest me how to use String in switch-case statement , it will be helpful to me. There is a way if you really really want to use switch statements. Create an enum class which includes the switch statement cases public enum MustUseSwitch{
可能重复： 在Java中使用字符串切换语句 我试图在String上使用switch语句，但它给编译错误。 如果有人告诉我如何在switch-case语句中使用String，这对我会有所帮助。 如果你真的想使用switch语句，有一种方法。 创建一个包含switch语句的枚举类 public enum MustUseSwitch{ value1, value2, value3; } 然后使用枚举切换到语句。 switch(MustUseSwitch.valueOf(stringVariable)){ case value1:
This question already has an answer here: Why can't I switch on a String? 14 answers 你甚至可以让enum为你做： public static void main(String[] args) throws InterruptedException { String typeName = "Boolean"; String memberValue = "memberValue"; SwitchInputType type = Type.valueOf(typeName).makeType(memberValue); } enum Type { Boolean { SwitchInputType makeType(Stri
这个问题在这里已经有了答案： 为什么我不能打开一个字符串？ 14个答案 你甚至可以让enum为你做： public static void main(String[] args) throws InterruptedException { String typeName = "Boolean"; String memberValue = "memberValue"; SwitchInputType type = Type.valueOf(typeName).makeType(memberValue); } enum Type { Boolean { SwitchInputType makeType(String memberValue) {