option： A： 123 132 B: 123 132 213 231 312 321 C: 321 312 231 213 132 123 D: 123 What is output?public class WordScramble {public static void wordScramble(String rem, String scr)if (rem.isEmpty()) {System.out.println(scr + rem);}else {for (int i = 0; i < rem.length(); ++i) {wordScramble((rem.substring(0, i) + rem.substring(i + 1, rem.length())), (scr + rem. charAt(i)));}}}public static void main(String args[]) {wordScramble("123", "");}}

wordScramble is printing the second parameter if first parameter is empty string If rem is not empty…

Answered: What is output? public class…

What is output? public class WordScramble { public static void wordScramble(String rem, St { if (rem.isEmpty)) { System.out.println(scr + rem);

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

option：

A： 123

132

B: 123

132

213

231

312

321

C: 321

312

231

213

132

123

D: 123

What is output?
public class WordScramble {
public static void wordScramble(String rem, String scr)
if (rem.isEmpty()) {
System.out.println(scr + rem);
}
else {
for (int i = 0; i < rem.length(); ++i) {
wordScramble((rem.substring(0, i) + rem.substri
ng(i + 1, rem.length())), (scr + rem. charAt(i)));
}
}
}
public static void main(String args[]) {
wordScramble("123", "");
}
}

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