String a(int myInt) {
        StringBuilder sb = new StringBuilder();
        sb.append(Integer.toHexString(myInt));
        if (sb.length() < 2) {
                sb.insert(0, '0'); // pad with leading zero if needed
        }
        return sb.toString();
}

static java.lang.String a(int);
  Code:
   0:   new     #8; //class java/lang/StringBuilder
   3:   dup
   4:   invokespecial   #9; //Method java/lang/StringBuilder."<init>":()V
   7:   astore_1
   8:   aload_1
   9:   iload_0
   10:  invokestatic    #10; //Method java/lang/Integer.toHexString:(I)Ljava/lang/String;
   13:  invokevirtual   #11; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
   16:  pop
   17:  aload_1
   18:  invokevirtual   #12; //Method java/lang/StringBuilder.length:()I
   21:  iconst_2
   22:  if_icmpge       33
   25:  aload_1
   26:  iconst_0
   27:  bipush  48
   29:  invokevirtual   #13; //Method java/lang/StringBuilder.insert:(IC)Ljava/lang/StringBuilder;
   32:  pop
   33:  aload_1
   34:  invokevirtual   #14; //Method java/lang/StringBuilder.toString:()Ljava/lang/String;
   37:  areturn



String b(int myInt) {
        String s = Integer.toHexString(myInt);
        if(s.length() < 2) {
                s = '0' + s;
        }
        return s;
}

static java.lang.String b(int);
  Code:
   0:   iload_0
   1:   invokestatic    #10; //Method java/lang/Integer.toHexString:(I)Ljava/lang/String;
   4:   astore_1
   5:   aload_1
   6:   invokevirtual   #15; //Method java/lang/String.length:()I
   9:   iconst_2
   10:  if_icmpge       33
   13:  new     #8; //class java/lang/StringBuilder
   16:  dup
   17:  invokespecial   #9; //Method java/lang/StringBuilder."<init>":()V
   20:  bipush  48
   22:  invokevirtual   #16; //Method java/lang/StringBuilder.append:(C)Ljava/lang/StringBuilder;
   25:  aload_1
   26:  invokevirtual   #11; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
   29:  invokevirtual   #14; //Method java/lang/StringBuilder.toString:()Ljava/lang/String;
   32:  astore_1
   33:  aload_1
   34:  areturn

}