Set 4

Multiple Choice Question

QID: 
95

Given:

public class Square {
private double side = 0; // LINE 2
public static void main(String[] args) { // LINE 4
Square sq = new Square(); // LINE 5
side = 10; // LINE 6
}
}

What can be done to make this code compile and run?

Select 1 option

A. replace // LINE 2 with:
          private int side = 0;
B. replace // LINE 2 with:
          public int side = 0;
C. replace // LINE 5 with:
         double sq = new Square();
D. replace // LINE 6 with:
          sq.side = 10;

Multiple Choice Question

QID: 
94

Given:

public class Employee{
String name;
public Employee(){
}
}

Which of the following lines creates an Employee instance?

Select 1 option

A. Employee e;
B. Employee e = new Employee();
C. Employee e = Employee.new();
D. Employee e = Employee();

Multiple Choice Question

QID: 
93

Consider the following program :

class Test{
public static void main(String[] args){
short s = 10; // 1
char c = s; // 2
s = c; // 3
}
}

Identify the correct statements.

Select 2 options

A. Line 3 is not valid.
B. Line 2 is not valid.
C. It will compile because both short and char can hold 10.
D. None of the lines 1, 2 and 3 are valid.

Multiple Choice Question

QID: 
92

Which of the following is not a primitive data value in Java?

Select 2 options

A. "x"
B. 'x'
C. 10.2F
D. Object
E. false

Multiple Choice Question

QID: 
91

Given the following class, which of the given blocks can be inserted at line 1 without errors?

public class InitClass{
private static int loop = 15 ;
static final int INTERVAL = 10 ;
boolean flag ;
//line 1
}

Select 4 options

A. static {System.out.println("Static"); }
B. static { loop = 1; }
C. static { loop += INTERVAL; }
D. static { INTERVAL = 10; }
E. { flag = true; loop = 0; }

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