Programming

2. //Predict the output
class Main
{
public static void main(String[] args)
{
System.out.println(“Enjoy today");
}
}
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3. E n j o y t o d a y
Question 1
A)
Enjoy today
B)
Enjoy
today
C)
error
D)

4. E n j o y t o d a y
Question 1
A)
Enjoy today
B)
Enjoy
today
C)
error
D)

5. //Predict the output
class Main
{
public static void main(String args[])
{
int a[]=new int[3];
a[0]=1;
a[1]=2;
a[2]=7;
for(int i=0;i<a.length;i++)
System.out.println(a[i]);
}
}
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6. 1
2
7
Question 2
A)
1 2 7
B)
Error
C)
127
D)

7. 1
2
7
Question 2
A)
1 2 7
B)
Error
C)
127
D)

8. //Predict the output
public class Main
{
public static void main(String[] args)
{
int[] b = {1, 2, 3};
System.out.println(b[5]);
}
}
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9. 0
Question 3
A)
ArrayindexoutofBoundsexception
B)
1 2 3
C)
1
2
3
D)

10. 0
Question 3
A)
ArrayindexoutofBoundsexception
B)
1 2 3
C)
1
2
3
D)

11. //Predict the output
public class Main
{
public static void main(String[] args)
{
String[] arr = {"Welcome","to","java",“programming"};
for (int i = 0; i < arr.length; i++)
{
System.out.println(arr[i] + " ");
}
}
}
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12. No output
Question 4
A)
Welcome to java programming
B)
“Welcome”, “to”, “java”, “programming”
C)
Compilation error
D)

13. No output
Question 4
A)
Welcome to java programming
B)
“Welcome”, “to”, “java”, “programming”
C)
Compilation error
D)

14. //Predict the output
class Main
{
public static void main(String args[])
{
int arr[]={10, 15, 20, 25, 30};
System.out.println(arr.length);
}
}
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15. 6
Question 5
A)
0
B)
5
C)
No output
D)

16. 6
Question 5
A)
0
B)
5
C)
No output
D)

17. //Predict the output
class Main
{
public static void main(String args[])
{
int[] arr = {2, 4, 6, 8, 10};
int sum = 0;
for( int a : arr)
{
sum = sum+a;
}
System.out.println(sum);
}
}
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18. 30
Question 6
A)
Compilation error
B)
5
C)
10
D)

19. 30
Question 6
A)
Compilation error
B)
5
C)
10
D)

20. //Predict the output
class Main
{
public static void main(String[] args)
{
int[] b = new int[]{ 10, 20, 30, 40};
int sum = 0;
for (int i=0; i < b.length ; i++)
{
sum = sum + b[i];
}
System.out.println(sum);
}
}
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21. 20
Question 7
A)
100
B)
120
C)
40
D)

22. 20
Question 7
A)
100
B)
120
C)
40
D)

23. // Predict the output
import java.util.*;
public class Main
{
public static void main(String args[])
{
int arr[] = {10, 20, 30, 40, 50};
System.out.println(arr[2]);
}
}
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24. ArrayIndexOutOfBoundsException
Question 8
A)
5
B)
Compilation error
C)
30
D)

25. ArrayIndexOutOfBoundsException
Question 8
A)
5
B)
Compilation error
C)
30
D)

26. //Predict the output
public class Main
{
public static void main(String args
{
int arr[] = {11,22,33,44,55};
for(int i=0; i < arr.length; i++)
{
System.out.print(arr[i]);
}
}
}
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27. NullPointerException
Question 9
A)
1122334455
B)
Compilation error
C)
11 22 33 44 55
D)

28. NullPointerException
Question 9
A)
1122334455
B)
Compilation error
C)
11 22 33 44 55
D)

29. //Predict the output
public class Main
{
public static void main(String [] args)
{
String arr[] = {“Happy”,”Journey”};
for(int i=0; i < arr.length; i++)
{
System.out.println(arr[i]);
}
}
}
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30. Happy Journey
Question 10
A)
Happy
Journey
B)
No output
C)
D) HappyJourney

31. Happy Journey
Question 10
A)
Happy
Journey
B)
No output
C)
D) HappyJourney

32. //Predict the output
import java.util.*;
class Main
{
public static void main(String args[])
{
int a[];
System.out.println(a[0]);
System.out.println(a[2]);
}
}
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33. Compile error
Question 11
A)
a[0]
a[1]
B)
0
C)
D) { }

34. Compile error
Question 11
A)
a[0]
a[1]
B)
0
C)
D) { }

35. //Predict the output
class Main
{
public static void main(String args[])
{
int a[]={2,5,6,7};
for(int i=0;i<a.length;i++)
{
if(a[i]%2!=0)
{
System.out.println(a[i]);
}
}
}
}
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36. 2 5 6 7
Question 12
A)
5
7
B)
2
6
C)
D) No output

37. 2 5 6 7
Question 12
A)
5
7
B)
2
6
C)
D) No output

38. //Predict the output
class Main
{
public static void main(String args[])
{
int b[]={3,4,5,8,9};
for(int i=0;i<b.length;i++)
{
if(b[i]%2==0)
{
System.out.println(b[i]);
}
}
}
}
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39. Compilation error
Question 13
A)
3
5
9
B)
4
8
C)
D) 3 4 5 8 9

40. Compilation error
Question 13
A)
3
5
9
B)
4
8
C)
D) 3 4 5 8 9

41. //Predict the output
class Main
{
public static void main(String args[])
{
int s [] = new int[10];
for (int i = 0; i < 10; ++i)
{
s[i] = i;
System.out.print(s[i] + " ");
i++;
}
}
}
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42. Compile error
Question 14
A)
0 2 4 6 8
B)
Null
C)
D) 02468

43. Compile error
Question 14
A)
0 2 4 6 8
B)
Null
C)
D) 02468

44. //Predict the output
import java.util.Arrays;
class Main
{
public static void main(String[] args)
{
int[] a = new int[]{56, 12, 28, 34, 89, 21};
Arrays.sort(a);
System.out.print(Arrays.toString(a));
}
}
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45. [56, 12, 28, 34, 89, 21]
Question 15
A)
[12, 21, 28, 34, 56, 89]
B)
ArrayindexoutofBoundsException
C)
D) 34

46. [56, 12, 28, 34, 89, 21]
Question 15
A)
[12, 21, 28, 34, 56, 89]
B)
ArrayindexoutofBoundsException
C)
D) 34

47. //Predict the output
class main
{
public static void main(String args[])
{
char a [] = new char[5];
for (int i = 0; i < 5; ++i)
{
a[i] = 'i';
System.out.print(a[i] + “ ");
}
}
}
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48. 0
Question 16
A)
Compilation error
B)
i i i i i
C)
D) 0 1 2 3 4

49. 0
Question 16
A)
Compilation error
B)
i i i i i
C)
D) 0 1 2 3 4

50. //Predict the output
class Main
{
public static void main(String[] args)
{
double[] val = {1.6, 2.5, 3.7, 4.5};
double sum = 0;
for (int i = 0; i < val.length; i++)
{
sum += val[i];
}
System.out.println(sum);
}
}
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51. 2.5
Question 17
A)
12.3
B)
4.5
C)
D) 12.7

52. 2.5
Question 17
A)
12.3
B)
4.5
C)
D) 12.7

53. //Predict the output
import java.util.Arrays;
class Main
{
public static int getSmallest(int[] a, int total)
{
Arrays.sort(a);
return a[0];
}
public static void main(String args[])
{
int a[]={11,15,10,18};
System.out.println(getSmallest(a,5));
}
}
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54. 11
Question 18
A)
15
B)
10
C)
D) 18

55. 11
Question 18
A)
15
B)
10
C)
D) 18

56. //Predict the output
class Main
{
static void min(int a[])
{
int min=a[0];
for(int i=1;i<a.length;i++)
if(min>a[i])
min=a[i];
System.out.println(min);
}
public static void main(String args[])
{
int a[]={7,3,2,6};
min(a);
}
}
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57. No output
Question 19
A)
7
B)
7 3 2 6
C)
D) 2

58. No output
Question 19
A)
7
B)
7 3 2 6
C)
D) 2

59. //Predict the output
class Main
{
public static void main(String[] args)
{
double[] v1 = {2.62, 5.54, 2.7, 3.5};
double max = v1[0];
for (int i = 1; i < v1.length; i++)
{
if (v1[i] > max) max = v1[i];
}
System.out.println(max);
}
}
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60. 2.7
Question 20
A)
5.54
B)
3.5
C)
D) 2.62

61. 2.7
Question 20
A)
5.54
B)
3.5
C)
D) 2.62

62. //Predict the output
import java.util.*;
class Main
{
public static void main(String[] args)
{
int[][] a = { {1, 2, 3, 4}, {5, 6, 7} };
for (int i = 0; i < a.length; ++i)
{
for(int j = 0; j < a[i].length; ++j)
{
System.out.print(a[i][j] + " ");
}
}
}
}
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63. 1 2 3 4
5 6 7
Question 21
A)
No output
B)
1 2 3 4 5 6 7
C)
D) 1234567

64. 1 2 3 4
5 6 7
Question 21
A)
No output
B)
1 2 3 4 5 6 7
C)
D) 1234567

65. //Predict the output
class Main
{
public static void main(String args[])
{
int arr[][]={{1,2,3},{2,4,5},{4,7,5}};
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
System.out.print(arr[i][j]+" ");
}
System.out.println();
}
}
}
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66. 1 2 3
2 4 5
4 7 5
Question 22
A)
No output
B)
1 2 3 2 4 5 4 7 5
C)
D) 1,2,3
2,4,5
4,7,5

67. 1 2 3
2 4 5
4 7 5
Question 22
A)
No output
B)
1 2 3 2 4 5 4 7 5
C)
D) 1,2,3
2,4,5
4,7,5

68. //Predict the output
import java.util.*;
class Main
{
public static void main(String args[])
{
int arr[][]={{1,2,0},{2,0,5},{0,7,1}};
for(int i=0;i<4;i++)
{
for(int j=0;j<4;j++)
{
System.out.print(arr[i][j]+" ");
}
}
}
}
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69. 1 2 0
2 0 5
0 7 1
Question 23
A)
ArrayindexoutofBoundsException
B)
120205071
C)
D) {1,2,0,2,0,5,0,7,1}

70. 1 2 0
2 0 5
0 7 1
Question 23
A)
ArrayindexoutofBoundsException
B)
120205071
C)
D) {1,2,0,2,0,5,0,7,1}

71. //Predict the output
class Main
{
public static void main(String[] args)
{
int max;
int s[]={35,45,67,23,55};
max = s[0];
for(int i = 0; i < 5; i++)
{
if(max < s[i])
{
max = s[i];
}
}
System.out.println(max);
}
}
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72. 67
Question 24
A)
35
B)
23
C)
D) 55

73. 67
Question 24
A)
35
B)
23
C)
D) 55

74. //Predict the output
class main
{
public static void main(String [] args)
{
int[][] td = { {1, 2, 3, 4}, {5, 6, 7} };
int a = td[1][2];
System.out.println(a);
}
}
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75. 2
Question 25
A)
7
B)
5
C)
D) 4

76. 2
Question 25
A)
7
B)
5
C)
D) 4

77. //Predict the output
class Main
{
public static void main(String[] args)
{
int[][] a = {{1, 5, 3, 4}, {4, 6, 9}, {2, 7}};
System.out.println(a[0].length);
System.out.println(a[1].length);
System.out.println(a[2].length);
}
}
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78. 4
3
2
Question 26
A)
1
4
2
B)
5
6
7
C)
D) 4
6
9

79. 4
3
2
Question 26
A)
1
4
2
B)
5
6
7
C)
D) 4
6
9

80. //Predict the output
class Main
{
public static void main(String[] args)
{
int[][] a = {{1, 5}, {4, 6}, {2, 7}};
System.out.println(a[0][1]);
System.out.println(a[1][0]);
}
}
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81. 4
7
Question 27
A)
5
4
B)
5
7
C)
D) 2
1

82. 4
7
Question 27
A)
5
4
B)
5
7
C)
D) 2
1

83. //Predict the output
class Main
{
public static void main (String[] args)
{
int[][] a = new int[][3];
for (int i = 0; i < a.length; i++)
{
for (int j = 0; j < a[i].length; j++)
{
a[i][j] = j;
System.out.print(a[i][j] + " ");
}
}
}
}
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84. 0 1 2
0 1 2
Question 28
A)
0 1 2 0 1 2
B)
Invalid Syntax
C)
D) 0 1 2

85. 0 1 2
0 1 2
Question 28
A)
0 1 2 0 1 2
B)
Invalid Syntax
C)
D) 0 1 2

86. //Predict the output
class Main
{
public static void main (String[] args)
{
int ar1[] = {2,0,1};
int ar2[] = {2,0,1};
if (ar1 == ar2)
System.out.println("Array 1 and 2 are identical");
else
System.out.println("Both array 1 and array 2 are
different");
}
}
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87. ArrayindexoutofBoundsException
Question 29
A)
Array 1 and 2 are identical
B)
Compile error
C)
D) Both array1 and array2 are different

88. ArrayindexoutofBoundsException
Question 29
A)
Array 1 and 2 are identical
B)
Compile error
C)
D) Both array1 and array2 are different

89. //Predict the output
class Main
{
public static void main (String[] args)
{
int[][] a1 = new int[3][];
for (int i = 0; i < a1.length; i++)
{
for (int j = 0; j < a1[i].length; j++)
{
a1[i][j] = j;
System.out.print(a1[i][j] + " ");
}
}
}
}
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90. ArrayindexoutofBoundsException
Question 30
A)
0 1 2
0 1 2
B)
NullPointerException
C)
D) 012012

91. ArrayindexoutofBoundsException
Question 30
A)
0 1 2
0 1 2
B)
NullPointerException
C)
D) 012012

92. //Predict the output
import java.util.Arrays;
class Main
{
public static void main (String[] args)
{
int ar1[] = {5, 2, 9};
int ar2[] = {5, 2, 9};
if (Arrays.equals(ar1, ar2))
System.out.println("Array 1 and 2 are same");
else
System.out.println("Both array 1 and 2 are different");
}
}
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93. ArrayindexoutofBoundsException
Question 31
A)
Array 1 and 2 are same
B)
Compile error
C)
D) Both array1 and array2 are different

94. ArrayindexoutofBoundsException
Question 31
A)
Array 1 and 2 are same
B)
Compile error
C)
D) Both array1 and array2 are different

95. //Predict the output
import java.util.Arrays;
class Main
{
public static void main(String[] args)
{
String str = "Nevergiveup";
char c = str.charAt(0);
char[] charArray = str.toCharArray();
System.out.println(Arrays.toString(charArray));
}
}
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96. Never give up
Question 32
A)
[N,e,v,e,r,g,i,v,e,u,p]
B)
Invalid syntax
C)
D) Never
Give
up

97. Never give up
Question 32
A)
[N,e,v,e,r,g,i,v,e,u,p]
B)
Invalid syntax
C)
D) Never
Give
up

98. //Predict the output
import java.util.Arrays;
class Main
{
public static void main(String args[])
{
int[] d = {3, 12, 60, 32 };
int temp;
int ar_size = d.length;
for (int i = 0; i < (ar_size / 2); i++)
{
temp = d[i];
d[i] = d[ar_size - (i + 1)];
d[ar_size - (i + 1)] = temp;
}
System.out.println(Arrays.toString(d));
}
}
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99. [3, 12, 60, 32]
Question 33
A)
No output
B)
[32, 60, 12, 3]
C)
D) 0

100. [3, 12, 60, 32]
Question 33
A)
No output
B)
[32, 60, 12, 3]
C)
D) 0

101. //Predict the output
class Main
{
public static void main (String[] args)
{
int arr[]={10, 15, 20, 25, 30};
int l1, l2, temp;
l1 = arr[0];
l2 = arr[1];
if (l1 < l2)
{
temp = l1;
l1 = l2;
l2 = temp;
}
for (int i = 2; i < 5; i++)
{
if (arr[i] > l1)
{
l2 = l1;
l1 = arr[i];
}
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102. else if (arr[i] > l2 && arr[i] != l1)
{
l2 = arr[i];
}
}
System.out.println (l1);
System.out.println (l2);
}
}
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103. 10
15
Question 34
A)
Compile error
B)
30
25
C)
D) 25 30

104. 10
15
Question 34
A)
Compile error
B)
30
25
C)
D) 25 30

105. //Predict the output
class Main
{
public static void main(String args[])
{
int b1 = sum(new int[]{2,3,4,5,8});
System.out.print(b1);
}
public static int sum(int a[])
{
int s = 0;
for(int i:a)
{
s = s+i;
}
return s;
}
}
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106. 44
Question 35
A)
22
B)
8
C)
D) 11

107. 44
Question 35
A)
22
B)
8
C)
D) 11

108. //Predict the output
class Main
{
static int num(int b[], int a, int y)
{
int r = 0;
for (int i=0; i<a; i++)
if (y == b[i])
r++;
return r;
}
public static void main(String args[])
{
int b[] = {5,4,6,4,8,4,9,3};
int a = b.length;
int y = 4;
System.out.println(num(b, a, y));
}
}
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109. 3
Question 36
A)
4
B)
8
C)
D) 5

110. 3
Question 36
A)
4
B)
8
C)
D) 5

111. //Predict the output
class Main
{
public static void main (String[] args)
{
int b[] = {10, 11, 12, 13};
int a = 50;
call(a,b);
System.out.println(a);
System.out.println(b[0]);
System.out.println(b[1]);
}
public static void call(int a, int b[])
{
a = a + 2;
b[0] = 60;
b[1] = 80;
}
}
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112. 50
60
80
Question 37
A)
52
10
11
B)
52
60
80
C)
D) 50
10
11

113. 50
60
80
Question 37
A)
52
10
11
B)
52
60
80
C)
D) 50
10
11

114. //Predict the output
class Main
{
public static void main(String args[])
{
int b[][] = {{ 1, 2, 3}, { 4 , 5, 6}, { 7, 8, 9}};
int sum = 0;
for (int i = 0; i < 3; ++i)
for (int j = 0; j < 3 ; ++j)
sum = sum + b[i][j];
System.out.println(sum / 5);
}
}
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115. 9
Question 38
A)
1 2 3
4 5 6
7 8 9
B)
0
C)
D) { }

116. 9
Question 38
A)
1 2 3
4 5 6
7 8 9
B)
0
C)
D) { }

117. //Predict the output
class Main
{
public static void main(String args[])
{
int a[][]={{1,3,4},{3,4,5}};
int b[][]={{1,3,4},{3,4,5}};
int c[][]=new int[2][3];
for(int i=0;i<2;i++)
{
for(int j=0;j<3;j++)
{
c[i][j]=a[i][j]+b[i][j];
System.out.print(c[i][j]+" ");
}
System.out.println()
}
}
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118. Compilation error
Question 39
A)
2 6 8
6 8 10
B)
1 3 4
3 4 5
C)
D) 2 6 8 6 8 10

119. Compilation error
Question 39
A)
2 6 8
6 8 10
B)
1 3 4
3 4 5
C)
D) 2 6 8 6 8 10

120. //Predict the output
public class Main
{
public static void main(String args[])
{
int a[][] = new int[3][];
a[0] = new int[1];
a[1] = new int[2];
a[2] = new int[3];
int i, j, k = 0;
for (i = 0; i < 3; i++)
{
for (j = 0; j < i + 1; j++)
{
a[i][j] = k;
k++;
}
}
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121. for (i = 0; i < 3; i++)
{
for (j = 0; j < i + 1; j++)
{
System.out.print(" " + a[i][j]);
k++;
}
System.out.println();
}
}
}
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122. Compile error
Question 40
A)
0
1 2
3 4 5
B)
0 1 2 3 4 5
C)
D) 0 1 2
3 4 5

123. Compile error
Question 40
A)
0
1 2
3 4 5
B)
0 1 2 3 4 5
C)
D) 0 1 2
3 4 5

124. THANK YOU