pub l class va lidParentheses{ //You will be given an array of characters which only contain '(' and ')' //You need to validate the parentheses: // If there is '(', there must be ')' but not neccessary right after // '(' and ')' need to be in correct order public static boolean validateParentheses(char[] parentheses){ //TODO: YOUR CODE HERE return false; //Return for compilation, this is wrong -> delete when done Run | Debug public static void main(String[] args){ char[] parentheses1 = {'(', ')'}; System.out.println("Test 1 passed: " + (validateParentheses(parentheses1) == true)); System.out.println(x: ."); char[] parentheses2 = {'(', '(', ')', ')'}; System.out.println("Test 2 passed: " + (validateParentheses (parentheses2) == true)); System.out.println(x: "- -"); char[] parentheses3 = {'(', '(', ')'}; // this is false because it needds an extra close parenthesis to match the first open parenthesis System.out.println("Test 3 passed: " + (validateParentheses(parentheses3) == false)); System.out.println(x: "- ");| char[] parentheses4 = {')', '(', ')', '('}; / this is false because of a close parenthesis appears before an open parenthesis (first one/index 0) System.out.println("Test 4 passed: " + (validateParentheses(parentheses4) == false)); System.out.println(x: "- "); char[] parentheses5 = {'(', ')', ')', ')', '(', '('}; // || this is false because of a close parenthesis appears before an open parenthesis (third one/index 2) System.out.println("Test 5 passed: " + (validateParentheses (parentheses5) == false)); System.out.println(x: "); char[] parentheses6 = {'(', ')', '(', ')'}; System.out.println("Test 6 passed: " + (validateParentheses (parentheses6) == true)); System.out.println(x: "- -"); char[] parentheses7 = {'(', '(', '(', ')', ')', '('}; // this is false because there is no close parenthesis to match openned ones (first one and sixth one) System.out.println("Test 7 passed: " + (validateParentheses(parentheses7) == true)); System.out.println(x: "- ");

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
3
public class ValidParentheses{
//You will be given an array of characters which only contain '(' and ')'
//You need to validate the parentheses:
4
5
6
//
If there is '(', there must be ')' but not neccessary right after
7
'(' and ')' need to be in correct order
8
public static boolean validateParentheses (char[] parentheses){
9
//TODO: YOUR CODE HERE
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11
return false; //Return for compilation, this is wrong -> delete when done
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13
Run | Debug
public static void main(String[] args){
char[] parentheses1 = {'(', ')'};
System.out.println("Test 1 passed:
14
15
+ (validateParentheses (parentheses1) == true));
-");
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System.out.println( x: ".
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char[] parentheses2 = {'(', '(', ')', ')'};
System.out.println("Test 2 passed: " + (validateParentheses (parentheses2)
System.out.println(x: "
19
20
== true));
21
");
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23
char[] parentheses3 = {'(', '(', ')'};
24
/ this is false because it needds an extra close parenthesis to match the first open parenthesis
System.out.println("Test 3 passed: "
System.out.println(x:
+ (validateParentheses (parentheses3)
");[
25
== false));
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27
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char[] parentheses4 = {')', '(', ')', '('};
/ this is false because of a close parenthesis appears before an open parenthesis (first one/index 0)
System.out.println("Test 4 passed: " + (validateParentheses (parentheses4)
System.out.println(x: "
29
30
== false));
31
");
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char[] parentheses5 = {'(', ')', ')', ')', '(', '('};
// || this is false because of a close parenthesis appears before an open parenthesis (third one/index 2)
System.out.println("Test 5 passed: "
34
+ (validateParentheses (parentheses5) == false));
");
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36
System.out.println(x: ".
37
char[] parentheses6 = {'(', ')', '(', ')'};
System.out.println("Test 6 passed: " + (validateParentheses (parentheses6)
System.out.println( x: ".
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true));
==
40
");
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42
char[] parentheses7 = {'(', '(', '(', ')', ')', '('};
// this is false because there is no close parenthesis to match openned ones (first one and sixth one)
System.out.println("Test 7 passed:
43
+ (validateParentheses (parentheses7) == true));
-");
44
45
System.out.println(x: ":
46
47
}
Transcribed Image Text:3 public class ValidParentheses{ //You will be given an array of characters which only contain '(' and ')' //You need to validate the parentheses: 4 5 6 // If there is '(', there must be ')' but not neccessary right after 7 '(' and ')' need to be in correct order 8 public static boolean validateParentheses (char[] parentheses){ 9 //TODO: YOUR CODE HERE 10 11 return false; //Return for compilation, this is wrong -> delete when done 12 13 Run | Debug public static void main(String[] args){ char[] parentheses1 = {'(', ')'}; System.out.println("Test 1 passed: 14 15 + (validateParentheses (parentheses1) == true)); -"); 16 17 System.out.println( x: ". 18 char[] parentheses2 = {'(', '(', ')', ')'}; System.out.println("Test 2 passed: " + (validateParentheses (parentheses2) System.out.println(x: " 19 20 == true)); 21 "); 22 23 char[] parentheses3 = {'(', '(', ')'}; 24 / this is false because it needds an extra close parenthesis to match the first open parenthesis System.out.println("Test 3 passed: " System.out.println(x: + (validateParentheses (parentheses3) ");[ 25 == false)); 26 27 28 char[] parentheses4 = {')', '(', ')', '('}; / this is false because of a close parenthesis appears before an open parenthesis (first one/index 0) System.out.println("Test 4 passed: " + (validateParentheses (parentheses4) System.out.println(x: " 29 30 == false)); 31 "); 32 33 char[] parentheses5 = {'(', ')', ')', ')', '(', '('}; // || this is false because of a close parenthesis appears before an open parenthesis (third one/index 2) System.out.println("Test 5 passed: " 34 + (validateParentheses (parentheses5) == false)); "); 35 36 System.out.println(x: ". 37 char[] parentheses6 = {'(', ')', '(', ')'}; System.out.println("Test 6 passed: " + (validateParentheses (parentheses6) System.out.println( x: ". 38 39 true)); == 40 "); 41 42 char[] parentheses7 = {'(', '(', '(', ')', ')', '('}; // this is false because there is no close parenthesis to match openned ones (first one and sixth one) System.out.println("Test 7 passed: 43 + (validateParentheses (parentheses7) == true)); -"); 44 45 System.out.println(x: ": 46 47 }
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