Posts by Megha SR

helo everyone......... could anyone of you please explain me the concept of ARRAYS.
another doubt.........can anyone of you just give e the basic lgic ofbinary search, linear search, bubble sorting an selection sorting!! specially binary search and linear serch the concept i have not understod proprly!! and a smal program to illustrate this pleae!!!

what is the difference between call by value and call by refers=ence? can you please give an example to illustrate it?

you can use switch case.its a long method.

thanks for that help. can you give me an example through a small program?i will understand it better with an example..waiting for your reply!

rice with a delicious curry! yummy!

can anyone explain to me about what actually is a constructor?

what is a hashmap and how do i use it? please help me @JamesCherril

is animv09c a gaming software? how do i use it?

no a character is not a string. the reaseon is that a character is enclosed within single quotes whereas a string is enclosed within double quotes.

can i do any modification in my program? if so, where? can you please help?

abstraction is the act of representing essential features withi=out including the background details or explaination. so, abstraction is used for hiding the unnecessary or the unwanted data from being displayed. for example if you know about functions in java, the process of calling the sub function,etc is hidden from the user. in a normal class, all these processes are shown.

i am convetring the character to a string value by usu=ing the variable 'j'.

i think it is-- Character.parseChar()

hello. i have done the followinh program to convert a String value to a double value.when i am compiling this program, i get an error as"unclosed character literal in the 18th line.can anyone say what's the problem?

import java.io.*;
class strin
{
    public static String a(String s);
    {
        String j="";
        char a;
        int i;
        for(i=0;i<s.length();i++)
        {
            c=s.charAt(i);
            if(c==' ')
            {
                j=j+c;
            }
            switch(j)
            {
                case 'one':System.out.print("1");break;
                case 'two':System.out.print("2");break;
                case 'three':System.out.print("3");break;
                case 'four':System.out.print("4");break;
                case 'five':System.out.print("5");break;
                case 'six':System.out.print("6");break;
                case 'seven':System.out.print("7");break;
                case 'eight':System.out.print("8");break;
                case 'nine':System.out.print("9");break;
                case 'ten':System.out.print("10");break;
                case 'eleven':System.out.print("11");break;
                case 'twelve':System.out.print("12");break;
                case 'thirteen':System.out.print("13");break;
                case 'fourteen':System.out.print("14");break;
                case 'fifteen':System.out.print("15");break;
                case 'sixteen':System.out.print("16");break;
                case 'seventeen':System.out.print("17");break;
                case 'eigtheen':System.out.print("18");break;
                case 'ninteen':System.out.print("19");break;
                case 'twenty':System.out.print("2");break;
                case 'thirty':System.out.print("3");break;
                case 'fourty':System.out.print("4");break;
                case 'fifty':System.out.print("5");break;
                case 'sixty':System.out.print("6");break;
                case 'seventy':System.out.print("7");break;
                case 'eigthy':System.out.print("8");break;
                case 'ninty':System.out.print("9");break;
                case 'hundred':System.out.print("1");break;
                case 'and':System.out.print("");break;
                case 'dot':System.out.print(".");break;
                case 'point':System.out.print(".");break;
            }
        }
        return i;
    }
    public static void main()throws IOException
    {
        try
        {             
        String r;
        BufferedReader x=new BufferedReader(new InputStreamReader(System.in));
        System.out.println("enter a sentence to print it in numbers");
        r=x.readLnie();
        String h;
        str cl=new cl();
        h=cl.a(r);
    }
    catch(Exception e)
    {
        System.out.print(e);
    }
}
}

eg=
String s="Hai! Hello Java";//this is the input or sentence whose words are to be counted
int i,words=1;//variable words is used to count the number of words.
char c;//variable c is used to extract each character.
for(i=0;i<s.length();i++)
{
c=s.charAt(i);
if(c==' ')//space is counted to determine the number of words.
words++;//increases the number of words by one.
}
System.out.println("no. of words ="+words);
}

hello. i have just started learning functions in java. i have done the below program to find area of rectangle,triangle and square. it is a private class.

class calcu
    {
        void rectangle(int l,int b)
        {
            int area1;
            area1=l*b;
            System.out.println("area of rectangle = "+area1);
        }
        void triangle(double base,double h)
        {
            double area2;
            area2=(0.5)*base*h;
            System.out.println("area of trinagle = ="+area2);
        }
        void square(int len)
        {
            int area3;
            area3=len*len;
            System.out.println("area of square = ="+area3);
        }
        public static void main(int m,int n,double o,double p,int q)
        {
            int a,d;
            double c;
            calcu obj=new calcu();
            a=obj.rectangle(m,n);
            c=obj.triangle(o,p);
            d=obj.square(q);
        }}

when i compile this program, i get an error that "incompatible types-found void but expected int".can anyone say what mistake i have done?

thankyou coil for the answer

i have got a program to convert a double value to a string.
eg==INPUT= 3.65
OUTPUT=three point six five.
can anyone give the solution.

thankyou James for the help ill search in this site.

i am not understanding the concept of FUNCTIONS and HOW TO US EFUNCTIONS. the answers from google search and wikipedia are not useful to me! can u help?

guys........ can anybody help me in FUNCTRIONS?? i'm not able to understand it. can u show me examples also???????? pls:icon_confused: :cool:
pls reply............. thankyou.........:?:

ther's a simple program 4 tat. Here it is............
u can use this method if u hv finished String class

import java.io.*;
class split
{
public static void main()throws IOException
{
BufferedReader x=new BufferedReader(new InputStreamReader(System.in));
String a;
int i,j;
char c;
System.out.println("Enter a word to split the letters");
a=x.readLine();
for(i=0;i<a.length();i++)
{
c=a.charAt(i);
System.out.println(c);
}}}

can anyone solve this?
a b c d e d c b a
a b c d***d c b a
a b c*******c b a
a b***********b a
a***************a

NOTE: here '*' denotes space

class pattern
{
public static void main()
{
int i,j;
for(i=6;i>=1;i--)
{
for(j=1;j<=i;j++)
{
System.out.print(j);
}
System.out.println();
}}}