Java 如何修复'；无法将字符串解析为类型'；

在eclipse中编译代码时，抛出错误

"Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    String cannot be resolved to a type
    String cannot be resolved to a type
    System cannot be resolved
    String cannot be resolved to a type
    System cannot be resolved   "

但我用大写字母“S”写了“字符串”

代码如下：

 public class student {
        int id;
        String name;
    }

class TestStudent1 {
    public static void main(String[] args) {
        student s = new student();
        s.name = "ram";
        s.id = 101;
        System.out.println(s.name);
        System.out.println(s.id);
    }
}

---

确保已保存文件并使TestStudent1类公开，并将文件名更改为TestStudent1.java，如下所示

class student {
    int id;
    String name;
}

public class TestStudent1 {
public static void main(String[] args) {
    student s = new student();
    s.name = "ram";
    s.id = 101;
    System.out.println(s.name);
    System.out.println(s.id);
}
}

以下是输出：

公羊

---

101

请包括导致出现此错误的代码。您可能遗漏了分号或括号。返回并在字符串缺少接缝的一侧添加“例如，string a=“test\u string";将其添加到问题中，使其看起来像代码。您可以通过单击“编辑帖子”来完成此操作。按空格键4次，然后添加代码我的代码是这是我写的代码包Java；公共类student{int id；String name；}class TestStudent1{public static void main（String[]args）{student s=new student（）；s.name=“ram”；s.id=101；System.out.println（s.name）；System.out.println（s.id）；}