Question 53)
You need to read in the lines of a large text file containing tens of megabytes of data. Which of the following would be most suitable for reading in such a file

1) new FileInputStream("file.name")
2) new InputStreamReader(new FileInputStream("file.name"))
3) new BufferedReader(new InputStreamReader(new FileInputStream("file.name")));
4) new RandomAccessFile raf=new RandomAccessFile("myfile.txt","+rw");

Answer to Question 53)


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Question 54)
What will happen when you attempt to compile and run the following code?

public class Inc{
public static void main(String argv[]){
Inc inc = new Inc();
int i =0;
inc.fermin(i);
i = i++;
System.out.println(i);
}
void fermin(int i){
i++;
}
}
1) Compile time error
2) Output of 2
3) Output of 1
4) Output of 0

Answer to Question 54)


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Question 55)
What will happen when you attempt to compile and run the following code?

public class Agg{
static public long i=10;
public static void main(String argv[]){
switch(i){
default:
System.out.println("no value given");
case 1:
System.out.println("one");
case 10:
System.out.println("ten");
case 5:
System.out.println("five");
}
}
}
1) Compile time error
2) Output of "ten" followed by "five"
3) Output of "ten"
4) Compilation and run time error because of location of default

Answer to Question 55)


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Question 56)
Given the following class

public class ZeroPrint{
public static void main(String argv[]){
int i =0;
//Here
}
}
Which of the following lines if placed after the comment //Here will print out 0.

1) System.out.println(i++);
2) System.out.println(i+'0');
3) System.out.println(i);
4) System.out.println(i--);

Answer to Question 56)


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Question 57)
Given the following code

class Base {}

class Agg extends Base{
public String getFields(){
String name = "Agg";
return name;
}
}

public class Avf{

public static void main(S

class Agg extends Base{
public String getFields(){
String name = "Agg";
return name;
}
}

public class Avf{

public static void main(String argv[]){
Base a = new Agg();
//Here
}
}
What code placed after the comment //Here will result in calling the getFields method resulting in the output of the string "Agg"?

1) System.out.println(a.getFields());
2) System.out.println(a.name);
3) System.out.println((Base) a.getFields());
4) System.out.println( ((Agg) a).getFields());

Answer to Question 57)

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