Question 1

Which of the following is a valid java keyword?

A. If B. BOOLEAN C. static D. Switch

Question 2

What will be the output of the following code?

System.out.println("Lucknow".substring(0,4));

A. Lucknow B. Luckn C. Luck D. luck

Question 3

Consider the program segment:


int p = 0;
for (p = 4; p > 0; p -= 2);
System.out.print(p);
System.out.println(p);

The above statements will display:

A. 42 B. 420 D. 00

Question 4

Identify the operator that gets the highest precedence while evaluating the given expression:
a + b % c * d - e

A. + B. % C. - D. *

Question 5

The output of the following code is:


System.out.println(Math.ceil(6.4)+Math.floor(-1-2));

A. 3.0 B. 4 C. 3 D. 4.0

Question 6

Which of the following pairs of methods will cause a compile-time error due to incorrect method overloading?

A. <code>void test(int a, int b)</code> and <code>void test(double a, double b)</code> B. <code>void test(int a, double b)</code> and <code>void test(double a, int b)</code> C. <code>void test(int a, double b)</code> and <code>void test(int a)</code> D. <code>void test(int a)</code> and <code>int test(int a)</code>

Question 7

............... class is used to convert a primitive data type to its corresponding object.

A. String B. Wrapper C. System D. Math

Question 8

Select the infinite loop:

A. for(int i=1; i<=10; i++) B. for(int i=2; i!=0; i-=3) C. for(int i=5; j<=5; j++) D. for(int i=1; i>=1; i--)

Question 9

A single dimensional array has 50 elements, which of the following is the correct statement to initialize the last element to 100.

A. x[51] = 100 B. x[48] = 100 C. x[49] = 100 D. x[50] = 100

Question 10

The method to convert a lowercase character to uppercase is:

A. String.toUpperCase() B. Character.isUppercase (char) C. Character.toUpperCase(char) D. toUpperCase()

ICSE Computer Applications Class 10 – Previous Year Question Papers &amp; Solutions

ICSE Computer Applications Class 10 – Previous Year Question Papers & Solutions