❓ تمرير المصفوفات للميثود: ماذا يُطبع؟
Passing arrays to methods: what prints?
Passing arrays to methods: what prints?
void change(int[] arr) {
arr[0] = 99;
arr = new int[]{7,7,7};
}
int[] x = {1,2,3};
change(x);
System.out.println(x[0]);❓ تأثير i++ داخل شرط while؟
Effect of i++ in while condition?
Effect of i++ in while condition?
int i = 0;
while (i++ < 3) { }
System.out.println(i);
❓ كم عدد الزيادات؟
How many increments occur?
How many increments occur?
int c = 0;
for (int i = 0; i < 3; i++) {
for (int j = 0; j <= i; j++) {
c++;
}
}
System.out.println(c);
❤1
❓ كيف يعمل fall-through عندما يطابق case 1؟
How does fall-through work here?
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);
❓ أي استدعاء يُفضَّل مع varargs؟
Which overload is chosen with 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);👍1
❓ أي استدعاء يُفضَّل مع varargs؟
Which overload is chosen with 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);❓ أي استدعاء يُفضَّل مع varargs؟
Which overload is chosen with 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);❓ أي استدعاء يُفضَّل مع varargs؟
Which overload is chosen with 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);❓ ما نتيجة البحث بعد الفرز؟
What is binarySearch result after sort?
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));👍1
❓ ما ناتج حساب المضروب البسيط؟
What does this factorial-like loop print?
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);