用java写hellowrold
时间: 2024-03-09 22:47:05 浏览: 4
当然可以,下面是一个简单的Java程序,它将输出“Hello, world!”:
```
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, world!");
}
}
```
你可以将这段代码保存在一个名为`HelloWorld.java`的文件中,并在命令行中使用以下命令编译它:
```
javac HelloWorld.java
```
如果编译成功,你会在同一目录下看到一个名为`HelloWorld.class`的文件。现在,你可以运行这个程序,命令如下:
```
java HelloWorld
```
当你运行这个程序时,它将输出“Hello, world!”到控制台。
相关问题
编写代码,用JAVA输出Hello Wrold
首先,需要使用Java语言的编辑器,创建一个新的文件,比如叫HelloWorld.java,然后在文件中添加以下代码:public class HelloWorld { public static void main(String[] args) { System.out.println("Hello World!"); } }在编辑器中保存文件,然后在命令行中运行java HelloWorld,就可以看到输出Hello World!。
java hello wrold
Sure, here's an example Java "Hello, World!" program:
```java
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
```
To run this program, you'll need to compile it and then run the resulting bytecode. Here's an example of how to do that using the command line:
1. Save the above code in a file named `HelloWorld.java`.
2. Open a command prompt or terminal window.
3. Navigate to the directory where you saved `HelloWorld.java`.
4. Compile the program by running the command `javac HelloWorld.java`. This will create a file named `HelloWorld.class`.
5. Run the program by running the command `java HelloWorld`. This should output the text "Hello, World!" to the console.