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WorksheetsTechnical Training Test for III BTech - VCE - CSE
Total questions: 45
Worksheet time: 53mins
What is the output of Java code snippet below?
short p = 1;
short k = p + 2;
System.out.println(k);
1
2
3
Compiler error
What is the output of the Java code snippet?
int a=5, b=10, c=15;
a -= 3;
b *= 2;
c /= 5;
System.out.println(a +" " + b + " " + c);
2 20 3
2 20 5
2 10 5
-2 20 3
Between Postfix and Prefix arithmetic operators in Java, which operators have more priority?
Postfix operators have more priority than Prefix operators
Prefix operators have more priority than Postfix operators
Both Prefix and Postfix operators have equal priority
None of the above
Output of the following code snippet (JAVA)?
class Main {
public static void main(String args[]) {
int t;
System.out.println(t);
}
}
0
Garbage value
Compiler error
Runtime error
Output of the code snippet
Hello
Empty Output
Compile time error
Runtime error
What is the output (JAVA)?
0
1
True
False
What is the error in this code(JAVA)?
byte b = 50;
b = b * 50;
b can not contain value 100, limited by its range.
* operator has converted b * 50 into int, which can not be converted to byte without casting.
b can not contain value 50.
No error in this code
What will be the output of the following program(JAVA)?
a and x 270 14
b and a 128.128 128
b and x 128.128 -128
a and x 270 14
b and x 128.128 -128
b and a 128.128 128
a and x 270.0 14.0
b and a 128.128 128
b and x 128.128 -128
Compilation Error or Runtime Error
What is Truncation is Java?
Floating-point value assigned to an integer type.
Integer value assigned to floating type.
Floating-point value assigned to an Floating type.
Integer value assigned to floating type.
What will be the output of the following code snippet(JAVA)?
Error
15
25
NO output
Which of the following for loop declaration is not valid(JAVA)?
for ( int i = 99; i >= 0; i / 9 )
for ( int i = 7; i <= 77; i += 7 )
for ( int i = 20; i >= 2; - -i )
for ( int i = 2; i <= 20; i = 2* i )
Which statement is true (JAVA)?
Compilation fails.
"odd" will always be output.
"even" will always be output.
"odd" will be output for odd values of x, and "even" for even values
Which of the following is true for variable names in C?
Variable names cannot start with a digit
Variable can be of any length
They can contain alphanumeric characters as well as special characters
Reserved Word can be used as variable name
What is the output of this program(C) ?
Compilations Error
10
1010
10.1
What is the output of this program(C)?
Syntax error in declaration of a
No errors, program will show the output 5
Redeclaration of a in same scope throws error
a is out of scope when printf is called
The output of the following code snippet (C) ?
p=1 q=1
p=1 q=2
p=2 q=2
Invalid Syntex
What is the output of this C code?
Compilation error
Undefined behavior
Whatever user types
Depends on the standard
What is the output of this C code?
hellonworld!
hello world!
hello
hello world!
How many times the following code prints the string “hello”
for(i=1;i<=50;i++)
printf(“Hello”);
1
50
0
None of the remaining option s
What is the output of this C code?
Compilation error
Somegarbage value
Whatever user types
Depends on the standard
What does the following code print(PYTHON)?
This is always printed
The negative number -10 is not valid here
This is always printed
The negative number -10 is not valid here
It will cause an error because every if statement must have an else statement.
What will be the output of given Python code?
2
6 5 2
3
5 2
What will be the output of the following Python code?
8 9
8 3
2 3
8 12
When does the else statement written after the loop executes?
When break statement is executed in the loop
When loop condition becomes false
Else statement is always executed
None of the above
What will be the output of the following code(PYTHON)?
a b c d e f
abcdef
i i i i i.....
No Output
Suppose a tuple arr contains 10 elements. How can you set the 5th element of the tuple to 'Hello'(PYTHON)?
arr[4] = 'Hello'
arr(4) = 'Hello'
arr[5] = 'Hello'
Elements of tuple cannot be changed
What is the output of the following PYTHON program :
print((1, 2) + (3, 4))
(1, 2), (3, 4)
(4, 6)
(1, 2, 3, 4)
Invalid Syntax
Which of these about a dictionary is false?
The values of a dictionary can be accessed using keys
The keys of a dictionary can be accessed using values
Dictionaries are ordered
Dictionaries are mutable
Which one of the following is False regarding data types in Python?
In python, explicit data type conversion is possible
Mutable data types are those that can be changed.
Immutable data types are those that cannot be changed.
None of the above
Choose correct output for the following sequence of operations( STACK/DS).
push(5)
push(8)
pop
push(2)
push(5)
pop
pop
pop
push(1)
Pop
8 5 2 5 1
8 5 5 2 1
8 2 5 5 1
8 1 2 5 5
Stack data structure cannot be used for
Implementation of Recursive Function
Allocation Resources and Scheduling
Reversing string
Evaluation of string in postfix form
Entries in a stack are "ordered". What is the meaning of this statement?
A collection of stacks can be sorted.
Stack entries may be compared with the <' operation.
The entries are stored in a linked list.
There is a Sequential entry that is one by one.
Which of the following applications may use a stack?
A parentheses balancing program
Tracking of local variables at run time
Compiler Syntax Analyzer
All of the above
Pushing an element into stack already having five elements and stack has fixed size of 5, then _____ occurs.
Overflow
Crash
Underflow
User flow
Convert the following infix expressions into its equivalent postfix expressions.
(A + B ⋀D)/(E – F)+G
(A B D ⋀ + E F – / G +)
(A B D +⋀ E F – / G +)
(A B D ⋀ + E F/- G +)
(A B D E F + ⋀ / – G +)
The equivalent infix expression and value for the postfix form 1 2 + 3 * 4 5 * – will be ___________
1 + 2 * 3 – 4 * 5 and -13
(2 + 1) * (3 – 4) * 5 and 13
1 + 2 * (3 – 4) * 5 and -11
(1 + 2) * 3 – (4 * 5) and -11
How many stacks are required for applying evaluation of infix expression algorithm?
1
2
3
4
Which of the following statement is incorrect with respect to evaluation of infix expression algorithm?
Operand is pushed on to the stack
If the precedence of operator is higher, pop two operands and evaluate
If the precedence of operator is lower, pop two operands and evaluate
The result is pushed on to the operand stack
Evaluate the following infix expression using algorithm and choose the correct answer. a+b*c-d/e^f where a=1, b=2, c=3, d=4, e=2, f=2.
6
8
9
7
From the given expression tree, identify the infix expression, evaluate it and choose the correct result.
5
10
12
16
What is the time complexity of reversing a word using stack algorithm?
O (N log N)
O (N2)
O (N)
O (M log N)
What will be output if the following sequence of operations are executed?
Push(a,s);
Push(b,s);
Pop(b);
Push(c,s);
abc
b
ac
acb
What are the set of functions that are to be executed to get the following output?
cat
push(c, s); push(a, s); push(t, s);
pop(s); pop(s); pop(s);
push(c,s); pop(s); push(a,s); pop(s);push(t,s);pop(s);
pop(c ); pop(a); pop(t);
push(c,s); push(a,s); pop(t)
Consider the postfix expression 4 5 6 a b 7 8 a c, where a, b, c are operators. Operator a has higher precedence over operators b and c. Operators b and c are right associative. Then, equivalent infix expression i
4 a 5 6 b 7 8 a c
4 a 5 c 6 b 7 a 8
4 b 5 a 6 c 7 a 8
4 a 5 b 6 c 7 a 8
What will be the output after performing these sequence of operations
push(20);
push(4);
top();
pop();
pop();
pop();
push(5);
top();
20
4
stack underflow
5
