Available now! Telegram Research 2025 — the year's key insights 
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| Date | Subscriber Growth | Mentions | Channels | |
| 08 June | 0 | |||
| 07 June | +4 | |||
| 06 June | +4 | |||
| 05 June | +1 | |||
| 04 June | +1 | |||
| 03 June | +2 | |||
| 02 June | +1 | |||
| 01 June | +3 |
Channel Posts
| 2 | ❓ continue مع الأعداد الزوجية
continue with evensint s = 0;
for (int i = 1; i <= 4; i++) {
if (i % 2 == 1) continue;
s += i;
}
System.out.println(s); | 60 |
| 3 | Choose your answer: | 148 |
| 4 | ❓ حساب على char
char arithmeticchar c = 'A';
c += 2;
System.out.println(c); | 136 |
| 5 | Choose your answer: | 189 |
| 6 | ❓ ثبات toString مقابل تعديل StringBuilder
StringBuilder mutabilityStringBuilder sb = new StringBuilder("a");
String s = sb.toString();
sb.append("b");
System.out.println(s); | 161 |
| 7 | Choose your answer: | 203 |
| 8 | ❓ إزالة أثناء for-each
Removing during for-eachimport java.util.*;
List<Integer> list = new ArrayList<>(java.util.Arrays.asList(1,2,3));
for (Integer v : list) {
if (v == 2) list.remove(v);
}
System.out.println(list.size()); | 191 |
| 9 | Choose your answer: | 222 |
| 10 | ❓ نسخ المصفوفة copyOf
Arrays.copyOf cloneint[] x = {1,2};
int[] y = java.util.Arrays.copyOf(x, x.length);
y[0] = 9;
System.out.println(x[0]); | 193 |
| 11 | Choose your answer: | 239 |
| 12 | ❓ حقول مقابل دالة مُعاد تعريفها
Fields vs overridden methodclass A { int v = 1; int get(){ return v; } }
class B extends A { int v = 2; int get(){ return v; } }
A a = new B();
System.out.println(a.v + "," + a.get()); | 216 |
| 13 | Choose your answer: | 252 |
| 14 | ❓ اختيار overload مع null
Overload resolution with nullvoid f(Object o){ System.out.print("O"); }
void f(String s){ System.out.print("S"); }
f(null); | 237 |
| 15 | Choose your answer: | 286 |
| 16 | ❓ تمرير مصفوفة لميثود
Passing array to methodstatic void inc(int[] a){
for (int i = 0; i < a.length; i++) a[i]++;
}
int[] a = {0,1,2};
inc(a);
System.out.println(a[2]); | 268 |
| 17 | 📢 Advertising in this channel
You can place an ad via Telega․io. It takes just a few minutes.
Formats and current rates: View details | 71 |
| 18 | Choose your answer: | 296 |
| 19 | ❓ switch مع break
switch with breakint n = 1;
switch (n) {
case 1: System.out.print("X"); break;
default: System.out.print("Y");
} | 282 |
| 20 | Choose your answer: | 298 |
