Program:
public class Odd
{
public static void main(String[] args)
{
int x = 16;
int y = x % 2;
if (y == 0)
{
System.out.println("The given number is Even ");
}
else
{
System.out.println("The given number is odd ");
}
}
}
Compile:
javac Odd.java
java Odd
Output:
The given number is Even
Program:
public class Prime
{
public static void main(String args[])
{
int num = 29;
boolean flag = false;
for (int i = 2; i <= num / 2; i++)
{
if (num % i == 0)
{
flag = true;
break;
}
}
if (!flag)
System.out.println(num + " is a prime number.");
else
System.out.println(num + " is not a prime number.");
}
}
Compile:
javac Prime.java
java Prime
Output:
29 is a prime number.
Program:
import java.util.*;
public class SwapWithout
{
public static void main(String[] args)
{
int x = 100;
int y = 200;
x = x + y;
y = x - y;
x = x - y;
System.out.println("X=" + x + " and Y=" + y);
}
}
Compile:
javac SwapWithout.java
java SwapWithout
Output:
X=200 and Y=100
Program
public class SwapWith
{
public static void main(String[] args)
{
int a = 10;
int b = 8;
int temp;
temp = b;
b = a;
a = temp;
System.out.println(a);
System.out.println(b);
}
}
Compile:
javac SwapWith.java
java SwapWith
Output:
8
10
public class ReverseNumber
{
public static void main(String args[])
{
int num = 654321, reverse = 0;
while (num != 0)
{
int remainder = num % 10;
reverse = reverse * 10 + remainder;
num = num / 10;
}
System.out.println("The reverse of the given number is:" + reverse);
}
}
Compile:
javac ReverseNumber.java
java ReverseNumber
Output:
The reverse of the given number is : 123456
public class Print
{
public static void main(String args[])
{
int n = 100;
System.out.println("Numbers from 1 to 100 is " + n + "are:");
for (int i = 1; i <= n; i++)
{
System.out.println(i + " ");
}
}
}
Compile:
javac Print.java
java Print
Output:
Numbers from 1 to 100 is 100 are:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
public class Natural
{
public static void main(String args[])
{
int i, num = 10, sum = 0;
for (i = 1; i <= num; i++)
{
sum = sum + i;
}
System.out.println(sum);
}
}
Compile:
javac Natural.java
java Natural
Output:
55
public class Fibonacci
{
public static void main(String[] args)
{
int n1=0,n2=1,n3,i,count=10;
System.out.print(n1+" "+n2);
for(i=2;i<count;i++)
{
n3=n1+n2;
System.out.print(" "+n3);
n1=n2;
n2=n3;
}
}
}
Compile:
javac Fibonacci.java
java Fibonacci
Output:
0 1 1 2 3 5 8 13 21 34
public class ASCII
{
public static void main(String[] args)
{
int i;
for (i = 0; i <= 127; i++)
{
System.out.println(" The ASCII value of " + (char) i + "=" + i);
}
}
}
Compile:
javac ASCII.java
java ASCII
Output:
The ASCII value of =0
The ASCII value of =1
The ASCII value of =2
The ASCII value of =3
The ASCII value of =4
The ASCII value of =5
The ASCII value of =6
The ASCII value of =7
The ASCII value of =8
The ASCII value of =9
The ASCII value of =10
The ASCII value of =11
The ASCII value of =12
The ASCII value of =13
The ASCII value of =14
The ASCII value of =15
The ASCII value of =16
The ASCII value of =17
The ASCII value of =18
The ASCII value of =19
The ASCII value of .=20
The ASCII value of =21
The ASCII value of =22
The ASCII value of =23
The ASCII value of =24
The ASCII value of =25
The ASCII value of =26
The ASCII value of =27
The ASCII value of =28
The ASCII value of =29
The ASCII value of =30
The ASCII value of =31
The ASCII value of =32
The ASCII value of !=33
The ASCII value of "=34
The ASCII value of #=35
The ASCII value of $=36
The ASCII value of %=37
The ASCII value of &=38
The ASCII value of '=39
The ASCII value of (=40
The ASCII value of )=41
The ASCII value of *=42
The ASCII value of +=43
The ASCII value of ,=44
The ASCII value of -=45
The ASCII value of .=46
The ASCII value of /=47
The ASCII value of 0=48
The ASCII value of 1=49
The ASCII value of 2=50
The ASCII value of 3=51
The ASCII value of 4=52
The ASCII value of 5=53
The ASCII value of 6=54
The ASCII value of 7=55
The ASCII value of 8=56
The ASCII value of 9=57
The ASCII value of :=58
The ASCII value of ;=59
The ASCII value of <=60
The ASCII value of ==61
The ASCII value of >=62
The ASCII value of ?=63
The ASCII value of @=64
The ASCII value of A=65
The ASCII value of B=66
The ASCII value of C=67
The ASCII value of D=68
The ASCII value of E=69
The ASCII value of F=70
The ASCII value of G=71
The ASCII value of H=72
The ASCII value of I=73
The ASCII value of J=74
The ASCII value of K=75
The ASCII value of L=76
The ASCII value of M=77
The ASCII value of N=78
The ASCII value of O=79
The ASCII value of P=80
The ASCII value of Q=81
The ASCII value of R=82
The ASCII value of S=83
The ASCII value of T=84
The ASCII value of U=85
The ASCII value of V=86
The ASCII value of W=87
The ASCII value of X=88
The ASCII value of Y=89
The ASCII value of Z=90
The ASCII value of [=91
The ASCII value of \=92
The ASCII value of ]=93
The ASCII value of ^=94
The ASCII value of _=95
The ASCII value of `=96
The ASCII value of a=97
The ASCII value of b=98
The ASCII value of c=99
The ASCII value of d=100
The ASCII value of e=101
The ASCII value of f=102
The ASCII value of g=103
The ASCII value of h=104
The ASCII value of i=105
The ASCII value of j=106
The ASCII value of k=107
The ASCII value of l=108
The ASCII value of m=109
The ASCII value of n=110
The ASCII value of o=111
The ASCII value of p=112
The ASCII value of q=113
The ASCII value of r=114
The ASCII value of s=115
The ASCII value of t=116
The ASCII value of u=117
The ASCII value of v=118
The ASCII value of w=119
The ASCII value of x=120
The ASCII value of y=121
The ASCII value of z=122
The ASCII value of {=123
The ASCII value of |=124
The ASCII value of }=125
The ASCII value of ~=126
The ASCII value of =127
public class Armstrong
{
public static void main(String[] args)
{
int i = 1, a, arm, n, temp;
System.out.println("Armstrong number between 1 to 500 are");
while (i < 500)
{
n = i;
arm = 0;
while (n > 0)
{
a = n % 10;
arm = arm + (a * a * a);
n = n / 10;
}
if (arm == i)
System.out.println(i);
i++;
}
}
}
Compile:
javac Armstrong.java
java Armstrong
Output:
Armstrong number between 1 to 500 are
1
153
370
371
407