java

问题 I'm wondering can I get the result when it cause timeout Exception when use Future and ExecutorService, for example, below is my code package com.example; import java.util.UUID; import java.util.concurrent.ExecutorService; import java.util.concurrent.Future; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; import org.apache.commons.lang3.concurrent

问题 I'm wondering can I get the result when it cause timeout Exception when use Future and ExecutorService, for example, below is my code package com.example; import java.util.UUID; import java.util.concurrent.ExecutorService; import java.util.concurrent.Future; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; import org.apache.commons.lang3.concurrent

问题 In my spring boot application i use spring-boot-starter-data-mongodb:2.1.3 to get coonection for MongoDB. I have some properties file to config mongoDB: spring.data.mongodb.host=localhost spring.data.mongodb.port=27017 spring.data.mongodb.database=database If i set incorrect host name ( spring.data.mongodb.host=incorrect host ) or port my application starts successfully. But i want that application to fail as same as when i set host name with wrong format ( spring.data.mongodb.host=hxxt:/

问题 I wish to use one of my local sound files to provide background music, but I get this error message: Caused by: java.lang.UnsatisfiedLinkError: Can't load library: C:\Program Files\Amazon Corretto\jdk1.8.0_232\jre\bin\glib-lite.dll But my code is as follow: public class DungeonGUI extends Application { private Dungeon dungeon; private Stage stage; private GridPane root; private Button attack; private Button heal; // private Button checkInventory; private Button save; private Text

问题 I wish to use one of my local sound files to provide background music, but I get this error message: Caused by: java.lang.UnsatisfiedLinkError: Can't load library: C:\Program Files\Amazon Corretto\jdk1.8.0_232\jre\bin\glib-lite.dll But my code is as follow: public class DungeonGUI extends Application { private Dungeon dungeon; private Stage stage; private GridPane root; private Button attack; private Button heal; // private Button checkInventory; private Button save; private Text

问题 This code asks the user for a triangle height and a letter. import java.util.*; public class triangle { public static void main(String [] args) { Scanner kb = new Scanner(System.in); int size = 0; Character c; System.out.println("Enter height of the triangle : "); size = kb.nextInt(); System.out.println("Which character you want to use : "); c = kb.next().charAt(0); int i, j, k; for (i = 0; i < size + 1; i++) { for (j = size; j > i; j--) { System.out.print(" "); } for (k = 0; k < (2 * i - 1);

问题 This code asks the user for a triangle height and a letter. import java.util.*; public class triangle { public static void main(String [] args) { Scanner kb = new Scanner(System.in); int size = 0; Character c; System.out.println("Enter height of the triangle : "); size = kb.nextInt(); System.out.println("Which character you want to use : "); c = kb.next().charAt(0); int i, j, k; for (i = 0; i < size + 1; i++) { for (j = size; j > i; j--) { System.out.print(" "); } for (k = 0; k < (2 * i - 1);

问题 I just started using Jackson JSON parser, and I love it, but I've run into a problem with a JSON object I'm trying to parse. here's my current java code: public class resetPassword { private String id; private String key1; private String key2; public String getId() { return id; } public void setId(String id) { this.id= id; } public String getKey1() { return key1; } public void setKey1(String key1) { this.key1= key1; } public String getKey2() { return key2; } public void setKey2(String key2) {

问题 I just started using Jackson JSON parser, and I love it, but I've run into a problem with a JSON object I'm trying to parse. here's my current java code: public class resetPassword { private String id; private String key1; private String key2; public String getId() { return id; } public void setId(String id) { this.id= id; } public String getKey1() { return key1; } public void setKey1(String key1) { this.key1= key1; } public String getKey2() { return key2; } public void setKey2(String key2) {

问题 Hello I am creating a Swing application to create a word document. I have made use of the Apache POI Java API for this purpose. But the problem is --> How do I set the word document to be read only after creation? I have heard of java.io.File.setReadOnly() method, but I don't know how to use it in this context. Here is the code: private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { try{ FileOutputStream outStream=new FileOutputStream("New.docx"); XWPFDocument doc =new