How to generate similar a1234 such number, the first is a lowercase letter, four digits after it

CodePudding user response:

 public class NumberTest {

Public static void main (String [] args) throws the Exception {
The String result=Character. ToString ((char) generateNumberInRange (97, 122)); 
For (int I=1; I & lt;=4; I++) {
The result +=generateNumberInRange (0, 9); 
} 

System. The out. Println (result); 
} 

Private static int generateNumberInRange (int min, int Max) {
If (min & gt;=Max) {
Throw new IllegalArgumentException (" invalid range "); 
} 

The Random r=new Random (); 
Return r.n extInt ((Max - min) + 1) + min; 
} 
}