Class X - Java 1

Which of the following option leads to the portability and security of Java?

• Bytecode is executed by JVM

• The applet makes the Java code secure and portable

• Use of exception handling

• Dynamic binding between objects

Which of the following is not a Java features?

• Dynamic

• Architecture Neutral

• Use of pointers

• Object-oriented

The \u0021 article referred to as a

• Unicode escape sequence

• Octal escape

• Hexadecimal

• Line feed

What does the expression float a = 35 / 0 return?

• 0

• Not a Number

• Infinity

• Run time exception

Evaluate the following Java expression, if x=3, y=5, and z=10;

• 24

• 23

• 20

• 25

Which of the following for loop declaration is not valid?

• 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 keyword is used for accessing the features of a package?

• package

• import

• extends

• export

Given,

int values[ ] = {1,2,3,4,5,6,7,8,9,10};

for(int i=0;i< Y; ++i)

System.out.println(values[i]);

Find the value of value[i]?

• 10

• 11

• 15

• None of the above

What is the range of byte data type in Java?

• -128 to 127

• -32768 to 32767

• -2147483648 to 2147483647

• None of the mentioned

What will be the output of the following Java statement?

class output {

public static void main(String args[]) {

double a, b,c;

a = 3.0/0;

b = 0/4.0;

c=0/0.0;

System.out.println(a); System.out.println(b); System.out.println(c);

} }

• Infinity

• 0.0

• NaN

• all of the mentioned