Java教學

IanChang

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Next: 註解

Hello World!

學習程式語言第一課都是Hello World

我們將學到如何輸出Hello World到控制台

Hello World

// {
package com.yourself;
import java.io.PrintStream;
public class lesson1 {
// }
public static void helloWorld() {
    //只要改變""裡的東西就可以輸出不一樣的字喔
    System.out.println("Hello World");
    //                      ^
    //                      |
    //                     這裡
}
//{
}
//}

請你將程式改成輸出Hi Java到控制台

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Hi Java

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1/3 Hello World

Hello World!

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