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Java Programming
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Course Name
BCA (Bachelor of Computer Application)
Subject Code BC0047 (Java Programming)
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PART - A
PART - B
PART - C
Subject : Java Programming
BC0047 : PART - B
| Q. 1 | What is the result of the expression ( 1 & 2
) +( 3 l 4) |
| | A) | 1 |
| B) | 2 | | C) | 7 | | D) | 8 | | | | | Q. 2 | Given tile following code fragment with
break to a labeled statement. Predict print
output.
int i,j;
Lab:
For(i=0;i<6;i++)}
For(j=5;j>2;j--){
If(i==j){
System.out.print(j+” “);
Break lab;
}
}
} |
| | A) | Output will be 543 |
| B) | Output will be 345 | | C) | Output will be 3 4 | | D) | Output will be 3 | | | | | Q. 3 | Given the following- code:
class Base { int x= 10; }
class Derived extends Base {int x = 20;}
Base b = new Base();
Derived d = new Derived();
Base bd = new Derived();
The statement
Systerw.out.printIn(b.x +” “ + d.x +” “ +
|
| | A) | 10 20 20 |
| B) | 10 20 10 | | C) | 20 10 20 | | D) | 20 20 10 | | | | | Q. 4 | How many String objects are created in the
following code?
String S 1, S2, S3;
S1 ="1234";
S2 = S1;
S3 = S1+S2; |
| | A) | 1 |
| B) | 2 | | C) | 3 | | D) | 4 | | | | | Q. 5 | A method to compute the sum of all
elements in an array of 'int' is needed. The
following proposed method is incomplete; select
the correct statement for line 3 from the
options provided.
1. public int total(int x[]) {
2. int i, t |
| | A) | for(int i=0; |
| B) | for(i=0;| | C) | for (i=0;| | D) | for ((int i=0;| | | | | | |
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