ICSE − Q & A

Anybody worried about theory tomorrow?

I'm so glad. You guys suffer while we literally have NO theory whatsoever. #BlessedLife

Convert snippet using ternary operator:

if (n>m)
  {
    s=n/m;
      m++;}
else 
 { s=m/n;
n++;
}

anyone here with cookery??

Is it compulsory to comment in a program? as said by @NehalG

during photosynthesis the oxygen in glucose comes from?? water or co2

// programme to find whether a string is palindrome or not? 
import java.util.*;
import java.io.*;

public class StringPalindrome
{
    public   void check()
    {Scanner sc=new Scanner(System.in);
    
      String s1;
      System.out.println(" enter a string");
      s1=sc.nextLine();
    
      StringBuffer a1=new StringBuffer(s1);
      StringBuffer a2=new StringBuffer((a1.reverse()));
      
      if(a1.equalsIgnoreCase(a2))
      {
         System.out.println(" the string is a palindrome ");
        }
        else
        {
            System.out.println(" the string is not a palindrome");
        }
    }
    public static void main()
    {
      StringPalindrome a=new StringPalindrome();
      a.check();
    }
}


i am getting this error:

/StringPallindrome.java:16: error: cannot find symbol
      if(a1.equalsIgnoreCase(a2))
             ^
  symbol:   method equalsIgnoreCase(StringBuffer)
  location: variable a1 of type StringBuffer
1 error

please tell what changes should i do in this programme?

Give an example of data abstraction

System.out.println((int)(Math.random()*10)); what are the range of possible out comes

Today is World Water Day....Save Water Save Earth.