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Please can someone help with a good document to learn CORE JAVA part? Also, please can you suggest me with some important concepts to get a very good hold on the core part?
Thanks.
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u can get easy notes for java 
just go to
http://way2java.com/
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How can i get time of sending and receiving messages between computers through time of flight based technique ?
i want the java code for it..
im doing the project called "discover and verification of neighbour position in MANET" ..IF U CAN PLEASE SEND THE JAVA CODE ..
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What does "time of flight" has to do with time APIs in Java?
Anyway, you can work your way around from this Oracle Java developers document[^]. You can get the time before sending the message, and at the time of recieving the message from the network.
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
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can you please send the java code?
It is for calculating the distance between two position from time information..i need to get the transmission time from one system and reception time of my message in another system..please send the java code for the above..
It is for doing the project called"Discovery and Verification of neighbour position in MANET"..Thank U ..
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can you please send the java code?
It is for calculating the distance between two position from time information..i need to get the transmission time from one system and reception time of my message in another system..please send the java code for the above..
It is for doing the project called"Discovery and Verification of neighbour position in MANET"..Thank U ..
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I already told you "don't ask for code". This site is not here to do your work for you. If this project is beyond your abilities then you need to talk to your supervisor/manager about it.
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Does anyone know how to find a median of an array? How do we sort it first?
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//created by akshgods
import java.util.*;
class median
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
int size=5,temp=0,mid=0,pnt1=0,pnt2=0;
System.out.println("Enter the size of array");
size=sc.nextInt();//taking size for array
int a[]=new int[size];
//taking values in array
System.out.println("Enter the values");
for(int i=0;i<size;i++)
{
a[i]=sc.nextInt();
}
//sorting array with bubbule sort in ascending order
for(int i=0;i<size-1;i++)
{
for(int j=0;j<size-i-1;j++)
{
if(a[j]>a[j+1])
{
temp=a[j];
a[j]=a[j+1];
a[j+1]=temp;
}
}
}
//printing values in ascending order
System.out.println("values in ascending order");
for(int i=0;i<size;i++)
{
System.out.print(" "+a[i]);
}
//finding medean logic
if(size%2==0)
{
pnt1=size/2;
pnt2=pnt1-1;
mid=(a[pnt1]+a[pnt2])/2;
System.out.println("\nmidean is= "+mid);
}
else
{
pnt1=(size+1)/2;
pnt1--;
mid=a[pnt1];
System.out.println("midean is= "+mid);
}
}
}
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Why is it giving me a zero.
double percent = 0;
if(condition) {
percent = scrollpane.getHeight() / origIcon.getImage().getHeight(scrollpane);
System.out.print(scrollpane.getHeight() + " / " + origIcon.getImage().getHeight(scrollpane));
System.out.println(" = " + percent);
} else {
}
This returns 309 / 1668 = 0.0 value should be 0.1852..
I know this is basic but I DON'T KNOW. sorry, too tired I guess but I need this to figure out
Thanks
- Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.
- Most of the problem in your life are due to two reasons: you act without thinking, or think without acting.
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Because that's what scrollpane.getHeight() / origIcon.getImage().getHeight(scrollpane) returns, due to integer datatypes.
I don't know Java, but I expect you could do something like:
percent = scrollpane.getHeight();
percent = percent / origIcon.getImage().getHeight(scrollpane);
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well that gives me an idea.. casting should do the trick
Thanks
- Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.
- Most of the problem in your life are due to two reasons: you act without thinking, or think without acting.
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thank you very much it works 
- Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.
- Most of the problem in your life are due to two reasons: you act without thinking, or think without acting.
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Hello. Can anybody help me create a program that lets user input positive integers and exits if a negative integer is input? the program that outputs max,min, and average of the integers. i have tried to do it since a week and i am stuck in an infinite while loop 
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If you show the code* that is failing then people will try to help you.
*Please ensure your code is formatted between <pre lang="java"></pre> tags so it is readable.
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Richard MacCutchan wrote: If you show the code* that is failing
He did. In the Quick Answers post that was then closed because it was flagged as a duplicate. 
/ravi
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public static void main(String[] args) {
Scanner in=new Scanner(System.in);
System.out.println("Enter a positive integer");
int userinput=in.nextInt();
int maxer=0;
int miner=0;
int sum=0;
int counter=1;
if(maxer<userinput){
maxer=userinput;
counter++;
sum=sum+userinput;
}
if(miner>userinput){
miner=userinput;
counter++;
sum=sum+userinput;
}
int avg= sum/counter;
System.out.println("Your maximum integer is "+maxer);
System.out.println("Your minimum integer is "+miner);
System.out.println("Your average is "+avg);
}
}
This is my code here
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One of the problems with this code is there's no loop present; so the summing and min/max computation (which may not be correct anyway) will only execute once. You may want to use a construct like this:
do {
get user input;
if (input is not negative) {
compute new min/max;
compute sum;
}
while (input is not negative);
display results;
/ravi
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but how do i write input is not negative in code?
i am in new in java so i am still not aware of the syntax.
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