在switch语句中使用扫描器，但我的程序只保持打印默认的

Question

import java.util.Scanner;
public class Exe7 {
public static void main(String[] args) {
            
        Scanner scn = new Scanner(System.in);
            
        System.out.print("Enter the term:");
        String term = scn.nextLine();
            
        switch(term) {
            case "Programming":
                System.out.println("It is the process of creating a set of instructions to tell the computer how to do a task.");
            break;
            case "Java":
            System.out.println("A popular high-level and object-oriented programming language developed by Sun Microsystems in 1995 and now, owned by Oracle.");
            break;
            case "print":
                System.out.println("A method in Java that is used to display a text on the console.");
            break;
            case "scanner":
            System.out.println("It is used to get an input data from the user, and found in the java.util package.");
            break;
            case "packages":
                System.out.println("It organizes Java classes into namespaces, providing a unique namespace for each type it contains.");
            break;
            case "IDE":
                System.out.println("also known as Integrated Development Environment, a software app that enables us to write & debug programs more easily.");
            break;
            case "switch":
                System.out.println("Unlike conditionals, these statements only checks equality and only works strings, char, int and enums.");
            break;
            case "function":
                System.out.println("A block of organized, reusable code that is used to perform a single, related action.");
            break;
            case "Conditional Statements":
                System.out.println("It allows a program to take action based on the given condition.");
            break;
            case "IF-statements":
                System.out.println("It is one of the conditional statement that handles one conditional expression. It either does SOMETHING or NOTHING.");
            break;
            default: 
                System.out.println("Sorry, we don't have any information about that.");
                 }
                 
        scn.close();

不管怎么说，对于会回应的人，提前非常感谢！

Answer 1

POST工作正常，至少输入java请参阅Ideone。
输入很可能不正确-switch需要完全相同的文本：大小写很重要，空格很重要，...

建议：在错误消息中包含输入：

default: 
    System.out.println("Sorry, we don't have any information about '" 
                       + term + "'");

因此，该消息可以帮助用户（和开发人员）看到哪里出了问题（甚至/特别是在生产代码中）。

switch (term.toLowerCase()) {
    case "programming":   \\ the labels must all be lowercase too
        ...
    case "java":
        ...