Why do we write String with an uppercase S?
Anonymous Quiz
26%
a) It is a convention for data types in Java
63%
b) It is a class in Java, not a primitive type
3%
c) To make it case-sensitive
8%
d) To differentiate it from arrays
How many methods are defined in the String class?
Anonymous Quiz
22%
a) 20
20%
b) 30
54%
c) 50
5%
d) 60
Why donβt we need to create new objects for strings if they are reference types?
Anonymous Quiz
3%
a) Strings are not reference types
26%
b) Strings are non-primitives
23%
c) Strings are dynamically allocated
49%
d) Strings are immutable and stored in a String pool
What is the correct output of System.out.println((10 + 3) , \" Hello\");?
Anonymous Quiz
19%
a) 13 Hello
3%
b) 10 3 Hello
0%
10 + 3 Hello
0%
c) 10 + 3 Hello
78%
d) Error
What is the correct output of System.out.println(10 + 3 + " Hello");?
Anonymous Quiz
58%
a) 13 Hello
19%
b) 10 3 Hello
3%
c) 10 + 3 Hello
19%
d) Error
Forwarded from < Ace Coding /> π
Mosh-cheat-sheets.zip
7.1 MB
π Cheat Sheets by Mosh π
Quick reference for Java, Python, SQL, and Git! π
βοΈ Java Cheat Sheet
π Python Cheat Sheet
π SQL Cheat Sheet
π» Git Cheat Sheet
Stay tuned for more! π₯
ππ @AceCoding Presents! ππ
#Java #Python #SQL #Git #CheatSheet
Quick reference for Java, Python, SQL, and Git! π
βοΈ Java Cheat Sheet
π Python Cheat Sheet
π SQL Cheat Sheet
π» Git Cheat Sheet
Stay tuned for more! π₯
ππ @AceCoding Presents! ππ
#Java #Python #SQL #Git #CheatSheet
Forwarded from < Ace Coding /> π
if (10 > 5)
int sum = 10 + 5;
System.out.println(sum);
Forwarded from < Ace Coding /> π
Whatβs wrong with the above snippet of code?
Anonymous Quiz
40%
a. Perfectly fine
14%
b. Sum is not printed
21%
c. Runtime error
24%
d. Compilation error
Forwarded from < Ace Coding /> π
Predict the output:
int i = 0;
while (++i < 5);
cout << "i: " << i << endl;
Forwarded from < Ace Coding /> π
Choose your answer for the above code.
Anonymous Quiz
31%
π
°οΈ i: 4
21%
π
±οΈ i: 5
18%
π
ΎοΈ i: 6
18%
β Infinite loop
13%
β Compilation error
Forwarded from < Ace Coding /> π
Predict the output:
int x = 5;
int y = 10;
(x > y ? x : y) = 50;
cout << "x: " << x << ", y: " << y << endl;
Forwarded from < Ace Coding /> π
Choose your answer for the above.
Anonymous Quiz
4%
π
°οΈ x: 50, y: 50
4%
π
±οΈ x: 10, y: 50
65%
π
ΎοΈ x: 5, y: 50
19%
β Undefined behavior
8%
β Compilation error
Forwarded from < Ace Coding /> π
Predict the output:
int a = (3, 4, 1, 2);
cout << a ;
Forwarded from < Ace Coding /> π
choose your answer for the above.
Anonymous Quiz
24%
π
°οΈ [3, 4, 1, 2]
0%
π
±οΈ [4, 2]
0%
π
ΎοΈ [3, 1]
6%
4
6%
2
12%
3
0%
1
18%
β Undefined behavior
35%
β Compilation error
Forwarded from < Ace Coding /> π
π Types of Errors in a Program: π₯β‘οΈπ
ππ @AceCoding Presents! ππ
π₯ Compilation Error: (Cannot compile, cannot run)
Occurs when the code has syntax issues, preventing it from being compiled. Common examples include missing semicolons, mismatched parentheses, or undeclared variables.
Example: int x = ;
β‘οΈ Runtime Error: (Compiles but cannot run, compilation comes before code execution or running)
Happens while the program is running. It usually occurs due to illegal operations like division by zero, accessing invalid memory, or infinite loops.
Example: int x = 5 / 0;
π Logical Error: (Code compiles and runs but won't result a correct output)
Occurs when the code runs without crashing, but it produces incorrect results due to flawed logic or assumptions. It can be tricky to spot as the program compiles and runs fine.
Example: int a = 5; int b = 2; cout << a - b; (Expecting multiplication but using subtraction)
ππ @AceCoding Presents! ππ
π1
Forwarded from < Ace Coding /> π
Predict the output of the following code snippets! π€
π Code Snippets: ```java String input = new String("hello"); System.out.println(input == "hello"); String input = "hello"; System.out.println(input == "hello"); ```
π Code Snippets: ```java String input = new String("hello"); System.out.println(input == "hello"); String input = "hello"; System.out.println(input == "hello"); ```
Anonymous Quiz
9%
A) True, False
45%
B) False, True
36%
C) True, True
9%
D) False, False
Forwarded from < Ace Coding /> π
πFor the above question
String input = new String("hello");
System.out.println(input == "hello");
String input = "hello";
System.out.println(input == "hello");