ICSE JAVA String Program

write a program to accept a string and display the new string after removing all the vowels from the string
eg
input:Computer Applications with BlueJ
output:Cmptr pplctns wth BlJ



class test
{
void main(String a)
{
char d;for(int c=0;c < a.length();c++)
{
d=a.charAt(c);
if(d!='a' && d!='A' && d!='e' && d!='E' && d!='i' && d!='I' && d!='o' && d!='O' && d!='u' && d!='U')System.out.print(d);
}
}
}

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ICSE Computer JAVA question

Guess the output of this java program.

class CoolProg
{
static void main()
{
System.out.println(Math.random());
System.out.println("over"+2+3);
System.out.println(2+3+"over"+0);
System.out.println(2+3+"over");
System.out.println(2+3+'A'+-1);
System.out.println('a'+"bhas");
System.out.println('A'+ 2);
System.out.println('A'+ 2);
int b=1;
int c=-b;
System.out.println(-b);
System.out.println(c);
String s="abhas";
System.out.println(s.substring(3,5));
System.out.println(s.substring(0,3));
System.out.println(s.substring(4));
System.out.println(s.substring(2));
}
}

/* * answer

0.6834987231679766 (random no less than 1)
over23
5over0
5over
69
abhas
67
67
-1
-1
as
abh
s
has

*/

Write a java program that checks whether a given NUMBER is palindrome or not.

Write a java program that checks whether a given NUMBER is palindrome or not.


import java.io.*;
public class Palindromenumber
{
public static void main(String args[])throws IOException
{
DataInputStream din=new DataInputStream(System.in);
int num,remainder,result=0,n;
System.out.println("Enter the number:");
String s=din.readLine();num = Integer.parseInt(s);
n=num;
while(num>0)
{
remainder = num%10;result = result * 10 + remainder;num = num/10;
}
if(n==result)
{
System.out.println(n+"is palindrome" );
}else
{
System.out.println(n+" is not palindrome" );
}
}
}

JAVA icse bluej program Pythagorean triplet

Write a program to input 3 nos. and check whether they are Pythogorean Triplet . or not .The program must display the message accordingly.

some Pythagorean triplets are
( 3, 4, 5)
( 5, 12, 13)
( 7, 24, 25)
( 8, 15, 17)
( 9, 40, 41)
(11, 60, 61)
(12, 35, 37)
(13, 84, 85)
(16, 63, 65)
(20, 21, 29)
(28, 45, 53)
(33, 56, 65)
(36, 77, 85)
(39, 80, 89)
(48, 55, 73)
(65, 72, 97)

u may use them to test the program.

Answer:
//program starts
import java.io.*;
class pytha
{
void main()throws IOException
{
BufferedReader obj=new BufferedReader(new InputStreamReader(System.in));
int a,b,c;
System.out.println("enter no.");
a=Integer.parseInt(obj.readLine());
System.out.println("enter no.");
b=Integer.parseInt(obj.readLine());
System.out.println("enter no.");
c=Integer.parseInt(obj.readLine());
if (a*a==b*b+c*c)
System.out.println("They are Pythogorean Triplet");
else if(b*b==a*a+c*c)
System.out.println("They are Pythogorean Triplet ");
else if(c*c==a*a+b*b)
System.out.println("They are Pythogorean Triplet a² + b² = c² ");
else
System.out.println("Test Failed !!! They are Non Pythogorean Triplet ");
}
}
//if u want to consider a² + b² = c² only then remove first 2 conditions

JAVA program for icse students

A library charges a fine for books returned late following are the charges for fine:--
First 5 Days:- 40 paise / day
6-10 days :- 60 paise /day
above 10 days:- 1 rupee /day

do with buffer reader..

import java.io.*;
class buff
{
void main()throws IOException
{
BufferedReader obj=new BufferedReader(new InputStreamReader(System.in));
System.out.println("enter no. of days");
int a;
a=Integer.parseInt(obj.readLine());
double ans=0;
if (a<=5)
ans=a*.4;
else if(a<=10)
ans= 2 + ((a-5)*.6);
else
ans= 2 + 3 + a-10;
System.out.println("Fine:"+ans);
}
}

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