Contoh Program Menghitung Luas Lingkaran | Java
Contoh prohram Menghitung luas lingkaran pada bahasa pemrograman java
import java.io.InputStreamReader;
import java.io.BufferedReader;
import javax.swing.JOptionPane;
public class lingkaran{
public static void main (String args[]) {
InputStreamReader inputa = new InputStreamReader (System.in);
BufferedReader baca= new BufferedReader (inputa);
double phi=3.14;
double r,luas;
try
{
System.out.print ("Jari : ");
String jari = baca.readLine();
r = Double.valueOf(jari).doubleValue() ;
luas=phi*(r*r);
System.out.println();
System.out.println ("jari " +r);
System.out.println ("Luas : "+luas);
}
catch (Exception e)
{
}
}
}
import java.io.InputStreamReader;
import java.io.BufferedReader;
import javax.swing.JOptionPane;
public class lingkaran{
public static void main (String args[]) {
InputStreamReader inputa = new InputStreamReader (System.in);
BufferedReader baca= new BufferedReader (inputa);
double phi=3.14;
double r,luas;
try
{
System.out.print ("Jari : ");
String jari = baca.readLine();
r = Double.valueOf(jari).doubleValue() ;
luas=phi*(r*r);
System.out.println();
System.out.println ("jari " +r);
System.out.println ("Luas : "+luas);
}
catch (Exception e)
{
}
}
}
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