Set 28

Multiple Choice Question

QID: 
227

Which of the following statements are valid?

Select 2 options

A. String[ ] sa = new String[3]{ "a", "b", "c"};
B. String sa[ ] = { "a ", " b", "c"};
C. String sa = new String[ ]{"a", "b", "c"};
D. String sa[ ] = new String[ ]{"a", "b", "c"};
E. String sa[ ] = new String[ ] {"a" "b" "c"};

Multiple Choice Question

QID: 
226

Consider the following code snippet ...

boolean[] b1 = new boolean[2];
boolean[] b2 = {true , false};
System.out.println( "" + (b1[0] == b2[0]) + ", "+ (b1[1] ==
b2[1]) );

What will it print ?

Select 1 option

A. It will not compile.
B. It will throw ArrayIndexOutOfBoundsError at Runtime.
C. false, true
D. true, false
E. It will print false, false.

Multiple Choice Question

QID: 
225

What will the following program print?

class Test{
public static void main(String[] args){
int i = 4;
int ia[][][] = new int[i][i = 3][i];
System.out.println( ia.length + ", " + ia[0].length+", "+ ia[0][0].length);
}
}

Select 1 option

A. It will not compile.
B. 3, 4, 3
C. 3, 3, 3
D. 4, 3, 4
E. 4, 3, 3

True or False

QID: 
224

The following class will print 'index = 2' when compiled and run.

class Test{
public static int[ ] getArray() { return null; }
public static void main(String[] args){
int index = 1;
try{
getArray()[index=2]++;
}
catch (Exception e){ } //empty catch
System.out.println("index = " + index);
}
}

Select 1 option

A. True
B. False

Multiple Choice Question

QID: 
223

What will be the result of attempting to run the following program?

public class StringArrayTest{
public static void main(String args[]){
String[][][] arr ={{ { "a", "b" , "c"}, { "d", "e", null } },
{ {"x"}, null },{{"y"}},{ { "z","p"}, {} }
};
System.out.println(arr[0][1][2]);
}
}

Select 1 option

A. It will throw NullPointerBoundsException.
B. It will throw ArrayIndexOutOfBoundsException.
C. It will print null.
D. It will run without any error but will print nothing.
E. None of the above.

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