JAVA提示 错误不是语句

Question

提示26行：错误：不是语句

HelloWorld!;
提示26行：错误：需要；
HelloWorld!;
public class HelloWorld { // the main class

public HelloWorld() {} // constructor function

/**
* This is our main function!
*
* It's oniy a simple example...
*
* @param no parameter is needed.
* @return none.
*/
public static void main( String[] argv ) {// main function

System.out.println( "HelloWorld." ); //print the right sentence
HelloWorld!;
return; // program finished.
}
}
只复制了1半

Answer 1

//如果是String类型呢，要加""的，比如：String str = "HelloWorld!"
//直接输入：System.out.println("HelloWorld!");

 改为：

 public static void main( String[] argv ) {// main function

        System.out.println( "HelloWorld." );  //print the right sentence
                                              //HelloWorld!; 此处没有注释啊。。
        return; // program finished.
     }

Answer 2

把HelloWord注释掉啊 你换行的时候还要加// 要不然编译器不会让你通过的

Answer 3

System.out.println( "HelloWorld." ); //print the right sentence
HelloWorld!;
这里错了，// 注释只能管一行，HelloWorld!;写到下面去了。

Answer 4

return 去掉

Answer 5

System.out.println( "HelloWorld." ); //print the right sentence
HelloWorld!;
return; // program finished.

修改为：
String hellloWorld = " HelloWorld!";
System.out.println( helloWorld ); //print the right sentence