SET-10
1.class test
{
public static void main(String args[])
{
int[] arr = {1,2,3,4};
call_array(arr[0], arr);
System.out.println(arr[0] +
"," + arr[1]);
}
static void call_array(int i, int arr[])
{
arr[i] = 6;
i = 5;
}
}
(A) 1,2
(B) 5,2
(C) 1,6
(D) 5,6
2.public class test
{
public static void
main(String args[])
{
int x;
x = -3 >> 1;
x = x >>> 2;
x = x << 1;
System.out.println(x);
}
}
(A) 7
(B) 23
(C) 5
(D) 2147483646
3.public class test {
public static void main(String args[]) {
String s1 = "abc";
String s2 = "abc";
if(s1 == s2)
System.out.println(1);
else
System.out.println(2);
if(s1.equals(s2))
System.out.println(3);
else
System.out.println(4);
}
}
(A) 1 2
(B) 1 3
(C) 1 4
(D) 2 4
4.public class test {
public static void main(String args[]) {
String s1 = "abc";
String s2 = new String("abc");
if(s1 == s2)
System.out.println(1);
else
System.out.println(2);
if(s1.equals(s2))
System.out.println(3);
else
System.out.println(4);
}
}
(A) 1 3
(B) 1 4
(C) 2 3
(D) 2 4
5.public class test
{
public static void
main(String args[])
{
int i = -1;
i = i >> 1;
System.out.println(i);
}
}
(A) 255
(B) 128
(C) -1
(D) 1
6. Which of the following are legal array declarations
a.int i[5][];
b.int i[][];
c.int []i[];
d.int i[5][5];
e.int[][] a;
(A) a, d, e
(B) b, c, d
(C) b, c, e
(D) a, c, e
7. Which of the following are valid declarations for the main
method
a.public static void main(String args[]);
b.public static void main(String []args);
c.final static public void main (String args[]);
d.public static int main(String args[]);
e.public static abstract void main(String args[]);
(A) a, b, c
(B) b, d, e
(C) a, d, c
(D) a, b, e
8.public class example {
public static void
main(String args[]) {
int x = 0;
if(x > 0) x = 1;
switch(x) {
case 1:
System.out.println(1);
case 0:
System.out.println(0);
case 2:
System.out.println(2);
break;
case 3:
System.out.println(3);
default:
System.out.println(4);
break;
}
}
}
A.0
B.1
C.2
D.3
E.4
(A) 1, 0, 2
(B) 3, 4
(C) 0, 2
(D) 1
9.String str;
int fname;
str = "Foolish boy.";
fname = str.indexOf("fool");
(A) 0
(B) 2
(C) -1
(D) 4
10.public class test {
public static void
main(String args[]) {
byte x = 3;
x = (byte)~x;
System.out.println(x);
}
}
(A) 0
(B) 3
(C) -4
(D) none of these
No comments:
Post a Comment