area of the traiangle in java
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
double a=scan.nextDouble();
double b=scan.nextDouble();
double c=scan.nextDouble();
scan.close();
double s=(a+b+c)/2;
double p=Math.sqrt(s*(s-a)*(s-b)*(s-c));
System.out.format("%.2f",p);
}
}
temparature comversion
import java.util.Scanner;
import java.util.*;
class bobby{
public static void main(String args[]){
Scanner obj = new Scanner(System.in);
double c = obj.nextDouble();
double f = 32+(c*9/5);
System.out.format("%.2f",f);
}
}
Area_of_a_circle.java
import java.util.Scanner;
class rough
{
public static void main(String args[])
{
int r;
Scanner sc=new Scanner(System.in);
r=sc.nextInt();
double area=r*r*(3.14);
System.out.format("%.2f",area);
}
}
Area of Triangle
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
double a=scan.nextDouble();
double b=scan.nextDouble();
double c=scan.nextDouble();
scan.close();
double s=(a+b+c)/2;
double p=Math.sqrt(s*(s-a)*(s-b)*(s-c));
System.out.format("%.2f",p);
}
}
average of two num
import java.util.*;
class bobby{
public static void main(String srgs[]){
Scanner obj = new Scanner(System.in);
int m = obj.nextInt();
int n = obj.nextInt();
double avrg = (double)(m+n)/2;
System.out.format("%.4f",avrg);
}
}
ascii value in java
import java.util.*;
class bobby{
public static void main(String args[]){
Scanner obj = new Scanner(System.in);
char ch = obj.next().charAt(0);
int ass = ch;
System.out.println(ass);
}
}
Program_to_Multiply_Two_Floating-Point_Numbers
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
double a=scan.nextDouble();
double b=scan.nextDouble();
scan.close();
double p=a*b;
System.out.format("%.2f",p);
}
}
Multiplication
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
int a=scan.nextInt();
int b=scan.nextInt();
scan.close();
int p=a*b;
System.out.println(p);
}
}
Division
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
int a=scan.nextInt();
int b=scan.nextInt();
scan.close();
int p=a/b;
System.out.println(p);
}
}
Modulus
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
int a=scan.nextInt();
int b=scan.nextInt();
scan.close();
int p=a%b;
System.out.println(p);
}
}
Take_Input_And_Print
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
String str=scan.nextLine();
System.out.print(str);
}
}
Adding_Two_Numbers
import java.util.Scanner;
class solution {
public static void main(String args[])
{
Scanner scan=new Scanner(System.in);
int a=scan.nextInt();
int b=scan.nextInt();
scan.close();
int p=a+b;
System.out.println(p);
}
}
maximum number of hand shake
import java.util.*;
class bobby{
public static void main(String args[]){
Scanner obj = new Scanner(System.in);
int n = obj.nextInt();
int count = 0;
for(int i=1;i<=n;i++){
for(int j=i+1;j<=n;j++){
count++;
}
}
System.out.println(count);
}
}
disk capacity
import java.util.*;
class bobby{
public static void main(String args[]){
Scanner obj = new Scanner(System.in);
int tk = obj.nextInt();
int st = obj.nextInt();
int blk = obj.nextInt();
int sf = 2;
int by = 512;
System.out.print(tk*st*blk*sf*by);
}
}
