如何修复“字符串无法解析为类型”

Question

when i compile the code in eclipse, throwing error

"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   "

but i have written "String" from capital "S"

Below is the code :

 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);
    }
}

Answer 1

Make sure you have saved your files and make TestStudent1 class public and change the file name as TestStudent1.java as below,

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);
}
}

here is the output:

ram 101