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Channel Posts
| 2 | ❓ أي عبارة صحيحة عن Overloading/Overriding؟
Which statement is true about overloading/overriding? | 385 |
| 3 | Choose your answer: | 395 |
| 4 | ❓ ما قيمة الحقل بعد إنشاء الكائن؟
What is the field value after object creation?class A { int v = 1; A(){ v *= 2; } }
A a = new A();
System.out.println(a.v); | 316 |
| 5 | Choose your answer: | 320 |
| 6 | ❓ ما مجموع التأثير في switch مع default؟
Total effect in switch with default?int x = 0;
int v = 3;
switch (v) {
case 1: x += 1; break;
case 2:
case 3: x += 3;
default: x += 5; break;
}
System.out.println(x); | 272 |
| 7 | Choose your answer: | 294 |
| 8 | ❓ ما طول الصف الثاني؟
What is the length of the second row?int[][] m = { {1,2}, {3,4,5} };
System.out.println(m[1].length); | 264 |
| 9 | Choose your answer: | 307 |
| 10 | ❓ ما ناتج بناء السلسلة داخل لوب؟
What does this string build print?String s = "a";
for (int i = 0; i < 3; i++) s += i;
System.out.println(s); | 277 |
| 11 | Choose your answer: | 306 |
| 12 | ❓ تأثير العامل الثلاثي مع الزيادات؟
Ternary with increments effect?int a = 1, b = 2;
int x = (a++ > 1) ? a : b++;
System.out.println(a + "," + b + "," + x); | 273 |
| 13 | Choose your answer: | 306 |
| 14 | ❓ ما ناتج حساب المضروب البسيط؟
What does this factorial-like loop print?int n = 3, r = 1;
for (int i = 1; i <= n; i++) r *= i;
System.out.println(r); | 286 |
| 15 | Choose your answer: | 350 |
| 16 | ❓ ما نتيجة البحث بعد الفرز؟
What is binarySearch result after sort?int[] a = {3, 1, 2};
java.util.Arrays.sort(a);
System.out.println(java.util.Arrays.binarySearch(a, 2)); | 339 |
| 17 | Choose your answer: | 356 |
| 18 | ❓ أي استدعاء يُفضَّل مع varargs؟
Which overload is chosen with varargs?static void m(int x) { System.out.print("exact"); }
static void m(int... x) { System.out.print("varargs"); }
m(5); | 313 |
| 19 | Choose your answer: | 347 |
| 20 | ❓ كيف يعمل fall-through عندما يطابق case 1؟
How does fall-through work here?int d = 1;
switch (d) {
case 0: d += 2;
default: d += 3;
case 1: d += 4;
}
System.out.println(d); | 331 |
