1.SIMPLE PROGRAM
class Welcome
{
public static void main(String args[])
{
System.out.println("WELCOME TO DASHVANTH VIRTUAL ACADEMY");
}
}
2. CONSTANT DEMO
public class Constant_Demo
{
public static void main(String args[])
{
int a;
a=10;
double pi=3.14;
char c='A';
System.out.println(a);
System.out.println(pi);
System.out.println(c);
}
}
3.VARIABLE DEMO
public class Variable_Demo
{
public static void main(String args[])
{
int a;
double pi;
char c;
a=25;
pi=3.14;
c='b';
System.out.println(a);
System.out.println(pi);
System.out.println(c);
a=55;
pi=3.25;
c='d';
System.out.println(a);
System.out.println(pi);
System.out.println(c);
}
}
4.DATA TYPE DEMO
public class Datatype_Demo
{
public static void main(String args[])
{
byte b=127;
short e=1234;
long l=12345;
int a;
float f=1.2f;
double pi;
char c;
a=25;
pi=3.14;
c='b';
System.out.println("b="+b);
System.out.println("e="+e);
System.out.println("l="+l);
System.out.println("a="+a);
System.out.println("f="+f);
System.out.println(pi);
System.out.println(c);
}
}
5.OPERATOR DEMO
5.1 ARITHMETIC OPERATOR PROGRAM
public class Arithmeticoperator_Demo
{
public static void main(String args[])
{
byte b=127;
short e=1234;
long l=12345;
int a;
float f=1.2f;
double pi;
char c;
a=25;
pi=3.14;
c='b';
long sum=b+e+l+a;
double d=l+f+a+pi;
System.out.println("long sum="+sum);
System.out.println("double d="+d);
System.out.println("b="+b);
System.out.println("e="+e);
System.out.println("l="+l);
System.out.println("a="+a);
System.out.println("f="+f);
System.out.println(pi);
System.out.println(c);
}
}
5.2 UNARY OPERATOR DEMO
public class Unary_Demo
{
public static void main(String args[])
{
int a=5;
int b=a++;
int c=++a;
//System.out.println(a);
//System.out.println(b);
System.out.println(b);
System.out.println(c);
}
}
6.CONTROL STATEMENTS
6.1 SIMPLE IF PROGRAM
public class if_Demo
{
public static void main(String args[])
{
int a=5;
int b=4;
if(a++<=b++)
{
System.out.println(b);
}
}
}
6.2 IF...ELSE DEMO PROGRAM
public class ifelse_Demo
{
public static void main(String args[])
{
int a=5;
int b=4;
if(a++<=b++)
{
System.out.println(b);
}
else
{
System.out.println(a);
}
}
}
6.3 IF...ELSE DEMO PROGRAM
public class ifelseif_Demo
{
public static void main(String args[])
{
int a=5;
int b=7;
int c= 6;
if(a++<b++ && a++<=c++)
{
System.out.println("b1="+b);
System.out.println("c1="+c);
System.out.println("a="+a);
}
else if(a++<b++ & a++<c++)
{
System.out.println("b2="+b);
System.out.println("c2="+c);
}
else if(a++<b++ || a++<c++)
{
System.out.println("b3="+b);
System.out.println("c3="+c);
}
else if(a++<b++ | a++<c++)
{
System.out.println("b4="+b);
System.out.println("c4="+c);
}
}
}
6.4 NESTED IF DEMO PROGRAM
public class Nestedif_Demo
{
public static void main(String args[])
{
int a=5;
int b=6;
int c=7;
if(a<=b)
{
if(a<=c)
{
System.out.println(c);
}
}
}
}
6.5 SWITCH DEMO PROGRAM
public class Switch_Demo
{
public static void main(String args[])
{
int a=5;
int c=564;
for(int i=1; i<=a; i++)
{
switch(i)
{
case 1:
{
System.out.println("a");
break;
}
case 2:
{
System.out.println("b");
break;
}
case 3:
{
System.out.println("c");
break;
}
case 4:
{
System.out.println("d");
break;
}
case 5:
{
System.out.println("e");
break;
}
default:
{
System.out.println(c);
break;
}
}
}
}
}
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