Given the code below, which lines are valid and invalid.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
2-7
Given the code below, which lines are valid and invalid.
![1: [Select]
[Select]
not valid
2: valid
3: [Select]
4: [Select]
__5: [Select]
6:
[Select]
[Calast 1
>
<](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F37ffeb4c-90e5-4cb9-a6b6-d76475059d8f%2Fe42cbab8-fe58-4c0c-a621-d15a3cf623f6%2F1wojumb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1: [Select]
[Select]
not valid
2: valid
3: [Select]
4: [Select]
__5: [Select]
6:
[Select]
[Calast 1
>
<
![public class Bottle {
}
private static boolean plastic;
private char letter;
public static int trash() {
return 0;
}
public boolean recycle() {
return true;
}
public static void main(String[] args) {
Bottle obj= new Bottle();
}
1 obj.recycle();
2 obj.trash();
3 Bottle.recycle();
4 Bottle.trash();
5 System.out.println(obj.letter);
6 System.out.println(obj.plastic);
7 System.out.println(Bottle.letter);
8 System.out.println (Bottle.plastic);](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F37ffeb4c-90e5-4cb9-a6b6-d76475059d8f%2Fe42cbab8-fe58-4c0c-a621-d15a3cf623f6%2Fjgvfdke_processed.jpeg&w=3840&q=75)
Transcribed Image Text:public class Bottle {
}
private static boolean plastic;
private char letter;
public static int trash() {
return 0;
}
public boolean recycle() {
return true;
}
public static void main(String[] args) {
Bottle obj= new Bottle();
}
1 obj.recycle();
2 obj.trash();
3 Bottle.recycle();
4 Bottle.trash();
5 System.out.println(obj.letter);
6 System.out.println(obj.plastic);
7 System.out.println(Bottle.letter);
8 System.out.println (Bottle.plastic);
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