Java Tutorial/Apache Common/RandomStringUtils
Содержание
RandomStringUtils.random
import org.apache.rumons.lang.RandomStringUtils;
public class MainClass {
public static void main(String[] args) {
//Random 8 chars string from within the characters ABCDEF
System.out.print("1) 8 char string using chars ABCDEF >>>");
System.out.println(RandomStringUtils.random(8, "ABCDEF"));
}
}
1) 8 char string using chars ABCDEF >>>FAADCDAF
RandomStringUtils.random2
import org.apache.rumons.lang.RandomStringUtils;
public class MainClass {
public static void main(String[] args) {
//Random 8 chars string where letters are enabled while numbers are not.
System.out.print("2) 8 char string using letters but no numbers >>>");
System.out.println(RandomStringUtils.random(8, true, false));
}
}
2) 8 char string using letters but no numbers >>>dlNqQZlu
RandomStringUtils.random3
import org.apache.rumons.lang.RandomStringUtils;
public class MainClass {
public static void main(String[] args) {
//Random 8 chars string using only the elements in the array aChars
//Only charcters between place 0 and 5 in the array can be used.
//Both letters and numbers are permitted
System.out.print("5) 8 char string using specific characters in an array >>>");
char[] aChars = new char[] { "a", "1", "c", "2", "e", "f", "g" };
System.out.println(RandomStringUtils.random(8, 0, 5, true, true, aChars));
}
}
4) 8 char string -Alphabets only >>>WOjFhopO
RandomStringUtils.randomAlphabetic
import org.apache.rumons.lang.RandomStringUtils;
public class MainClass {
public static void main(String[] args) {
//Random 8 chars string Alphabets only
System.out.print("4) 8 char string -Alphabets only >>>");
System.out.println(RandomStringUtils.randomAlphabetic(8));
}
}
4) 8 char string -Alphabets only >>>WOjFhopO
RandomStringUtils.randomAlphanumeric
import org.apache.rumons.lang.RandomStringUtils;
public class MainClass {
public static void main(String[] args) {
//Random 8 chars string Alphanumeric
System.out.print("3) 8 char Alphanumeric string >>>");
System.out.println(RandomStringUtils.randomAlphanumeric(8));
}
}
3) 8 char Alphanumeric string >>>Nd6DuX5s
RandomStringUtils.randomNumeric
import org.apache.rumons.lang.RandomStringUtils;
public class MainClass {
public static void main(String[] args) {
// Begin Lottery code
System.out.print("6) The two digit lucky number for the day is >>>");
System.out.println(RandomStringUtils.randomNumeric(2));
// End Lottery code
}
}
6) The two digit lucky number for the day is >>>96