import java.util.Random;
class t1{
public static void main(String[] args){ Random random1 = new Random(); char a; String b=""; for(int j=0;j<100;j++) { for(int i=0;i<10000;i++) { a=(char)Math.abs(random1.nextInt()%122); if( (a>='0' && a<='9') || (a>='A' && a<='Z') || ( a>='a' && a<='z')) { // System.out.println(a); b=b+a; } if(b.length()==32) { break; } } System.out.println(b); b=""; } } }