guys plz do .. it .. plz plz ... do any 2 of the following except 19 ,20 and 21... plz
. I will make you brainlist if ypu answer correctly .. no scam otherwise you will be reported
Answers
22)
import java.util.Scanner;
public class Geometry
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
System.out.println("MENU:");
System.out.println("Enter c for Area of a Circle");
System.out.println("Enter s for Area of a Square");
System.out.println("Enter r for Area of a Rectangle");
char op=s.next(). charAt (0);
switch(op)
{
case 'c': System.out.println("Enter radius:");
float r=s.nextFloat();
float ac=3.14f*r*r;
System.out.println("Area:"+ac);
break;
case 's': System.out.println("Enter side:");
int x=s.nextInt();
int as=x*x;
System.out.println("Area:"+as);
break;
case 'r': System.out.println("Enter height and base:");
float h=s.nextFloat();
float bs=s.nextFloat();
float art=0.5f*h*bs;
System.out.println("Area:"+art);
break;
default: System.out.println("Wrong choice");
}
}
}
23)
package com.java2novice.math;
public class MyLogEx {
public static void main(String a[]){
System.out.println("Natural logarithm value of 2 is: "+Math.log(2));
System.out.println("Natural logarithm value of 10 is: "+Math.log(10));
System.out.println("Natural logarithm value of 15 is: "+Math.log(15));
}
}
Output:
Natural logarithm value of 2 is: 0.6931471805599453
Natural logarithm value of 10 is: 2.302585092994046
Natural logarithm value of 15 is: 2.70805020110221
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