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/*fileName:P5Q20
 * Name:Wang Chaoran
 * Description:
20 (Generating random characters)
Use the methods in RandomCharacter in Listing 5.6 to print one hundred uppercase letters and then one hundred single digits, and print ten per line.
*/
public class P5Q20{
 
  public static void main(String[] args){
    System.out.println("One hundred uppercase letters :");
    for(int i=0;i<100;i++){
      if(i%10==9)
     System.out.println(getRandomCharacter('A','Z')+" ");
    else
     System.out.print(getRandomCharacter('A','Z')+" ");
    }
   
    System.out.println("\nOne hundred single digits :");
    for(int i=0;i<100;i++){
      if(i%10==9)
     System.out.println(getRandomCharacter('1','9')+" ");
    else
     System.out.print(getRandomCharacter('1','9')+" ");
    }
  }
  public static char getRandomCharacter(char ch1, char ch2){
    return (char)((int)(ch1)+Math.random()*((int)(ch2)-(int)(ch1)+1));
  }
}