// strings/UsingStringBuilder.java

// (c)2016 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://mindviewinc.com/Books/OnJava/ for more book information.

import java.util.*;

public class UsingStringBuilder {

public static Random rand = new Random(47);

@Override

public String toString() {

StringBuilder result = new StringBuilder("[");

for(int i = 0; i < 25; i++) {

result.append(rand.nextInt(100));

result.append(", ");

}

result.delete(result.length()-2, result.length());

result.append("]");

return result.toString();

}

public static void main(String[] args) {

UsingStringBuilder usb = new UsingStringBuilder();

System.out.println(usb);

}

}

/* Output:

[58, 55, 93, 61, 61, 29, 68, 0, 22, 7, 88, 28, 51, 89, 9,

78, 98, 61, 20, 58, 16, 40, 11, 22, 4]

*/