Authors:
Stuart Reges, Marty Stepp
Chapter:
Program Logic And Indefinite Loops
Exercise:
Exercises
Question:5 | ISBN:9780136091813 | Edition: 2
Question
Write a method called randomLines that prints between 5 and 10 random strings of letters (between “a” and “z”), one per line. Each string should have random length of up to 80 characters.
Answer
package indefinite_loops;
import java.util.Random;
public class RandomAlphabets {
public void randomLines() {
Random random = new Random();
String alphabets = "abcdefghijklmnopqrstuvwxyz";
// since argument is exclusive, add 1;
int numOfLines = random.nextInt(5 + 1) + 5;
// for loop to print number of lines
for (int i = 0; i < numOfLines; i++) {
int numOfCharacters = random.nextInt(80);
// for loop to print characters in each line
for (int j = 0; j < numOfCharacters; j++) {
int RandomCharacterIndex = random.nextInt(26);
char character = alphabets.charAt(RandomCharacterIndex);
System.out.print(character);
}
System.out.println();
}
}
public static void main(String args[]) {
// call the method
new RandomAlphabets().randomLines();
}
}
Output:
uzleduruixvsjzjapslfthitsnpfowapwqwqa
efzgguufwncbrbbyjpeactsxsffwmxkefqidhijvxljle
vummwuiztvfqewfgdwtgiijxgoyvtnorpytgevhwlwxiohvypspnqlnwkcfbcomx
lqznqkbswkqjgmikz
lfryufgzvbhehbxwhyukwkqkvutltoydihfav
gfbtkmtliegse
srgphammsxyvunwdpxalvcanbatrcciqztwwywmpgcpbruqanhzvdpduouknhqsowprfclajj