//package example; public class RandomCharacter { public static void main(String args[]){ for(int i = 0 ; i < 50 ; i++) if((i +1 )%10 == 0) System.out.print(getRandomUpperCase() + "\n"); else System.out.print(getRandomUpperCase() + " "); } public static char randomCharacter(char c1,char c2){ return (char)(c1 + Math.random()*(c2-c1+1)); } public static char getRandomLowerCase(){ return randomCharacter('a','z'); } public static char getRandomUpperCase(){ return randomCharacter('A','Z'); } public static char getRandomDigit(){ return randomCharacter('0','9'); } public static char randomCharacter(){ return randomCharacter('\u0000','\uFFFF'); } }