Compair two array elements
hi
Friends
i am compairing two int arrays of different size & printing the common elements of the both arrays
for example.----
int a[]=a{12,34,56,2,4,5,6,7,8,9,0,6,54,4,3,2,3,5,76,43,78,78,54,32,5,6,44,32};
int b[]=b{11,2,32,45,61,78,34,25,4};
i want output array having elements common to both
int c[]={ 2,32,78,34,4};
& count how many nos are matched
please help me
thanks
shivanand
Noone will do it for you, but if you post your code we can help.
You may need to use nested for loops, one to iterate over the first array, then the inner one to iterate over the second array. Make a third array that is as big as your smallest array (or better make a java.util.Set instead) and add any values that are duplicates into that.
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Hello everyone
I'm trying to take as input two numbers, convert them to arrays and add all the element of the array one by one. I want the result to be the sum of every element of the array. Let's say array1={1,2,3,4} and array2={2,6,4,3} I want the final result to be 3877.
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Printing every possible pair combination of elements in two arrays??
Hi there,
I'm trying to implement the problem of printing every possible pair combination of elements in two arrays. The pattern I have in mind is very simple, I just don't know how to implement it. Here's an example:
g[3] = {'A', 'B', 'C'}
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...code...??
Expected Output:
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Seannot a big fan of Java recursion, unless tail recursion, otherwise you are bound to have out of stack error. Here is some generic permutation method I wrote a while back:
It is generic enough, should serve your purpose.
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I post a questiona bout converting an array of integer into char (byte) array and I got a solution already http://forums.ni.com/t5/LabVIEW/how-to-display-char-code-properly/m-p/2596087#M780368
However, I enouther another problem while dealing with an array of U16 type. I would like to extract the high and low byte from numbers (U16) stored in array. I extract the high and low byte for each U16 number and convert them as char, concatenate them to a string. Repeat this process for each element in the array so to get a big string with each element is a char for high and low byte. My code is enclosed as follows
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Go to Solution.PKIM wrote:
However, I enouther another problem while dealing with an array of U16 type. I would like to extract the high and low byte from numbers (U16) stored in array. I extract the high and low byte for each U16 number and convert them as char, concatenate them to a string. Repeat this process for each element in the array so to get a big string with each element is a char for high and low byte. My code is enclosed as follows
It works fine but I am concerning the speed. Is that any other way to do it fast and don't use loop (in real case, I will deal with pretty big array many times, efficiency is a problem). Note that the high and low bytes array extracted from the original array with the module Split number.vi, but how can I combine these two array in one code with data arranged as high-low-high-low ... ? Thanks.
You need to be more clear.
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Have two arrays: ttt and ppp. I have to have a method to compare them.
public int compareTo(object ob)
both of the arrays are int type and both have super long numbers in them.
ThanksActually, the reflection api is pretty fast since
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bash-2.05a$ /usr/java/jdk1.3.1_04/bin/java TestArray
Result for reflect copiing (3 elements, 1000000 times): 4915ms
Result for system copiing (3 elements, 1000000 times): 460ms
Result for pure java copiing (3 elements, 1000000 times): 137ms
bash-2.05a$
bash-2.05a$ /usr/java/j2sdk1.4.0_01/bin/java TestArray
Result for reflect copiing (3 elements, 1000000 times): 6082ms
Result for system copiing (3 elements, 1000000 times): 491ms
Result for pure java copiing (3 elements, 1000000 times): 115ms
bash-2.05a$
bash-2.05a$ /usr/java/j2sdk1.4.1/bin/java TestArray
Result for reflect copiing (3 elements, 1000000 times): 5738ms
Result for system copiing (3 elements, 1000000 times): 497ms
Result for pure java copiing (3 elements, 1000000 times): 157ms
bash-2.05a$
As you can see, in new Java reflect operations on arrays are even slower then in jdk1.3.1. System copiing is good alternative for pure java (element by element) copiing, espetially for big arrays. And here is the code of this benchmark, test it on your PC also:
import java.lang.reflect.*;
public class TestArray {
static void doNothing(){}
static int field;
public static void main(String[] args) throws Exception {
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final String[] arr2 = new String[COUNT];
long time = -System.currentTimeMillis();
for(int i=TIMES; i-->0;)
copyReflect(arr1, arr2, COUNT);
time += System.currentTimeMillis();
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copySystem(arr1, arr2, COUNT);
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for(int i=TIMES; i-->0;)
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How to set the value of an array element (not the complete array) by using a reference?
My situation is that I have an array of clusters on the front panel. Each element is used for a particular test setup, so if the array size is three, it means we have three identical test setups that can be used. The cluster contains two string controls and a button: 'device ID' string, 'start' button and 'status' string.
In order to keep the diagrams simple, I would like to use a reference to the array as input into a subvi. This subvi will then modify a particular element in the array (i.e. set the 'status' string).
The first problem I encounter is that I can not select an array element to write to by using the reference. I have tried setting the 'Selection s
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If I do this, the VI always seems to write to the element which the user has selected (i.e. the element that contains the cursor) instead of the one I am trying to select. I also have not found any other possible use for the 'Selection' properties, so I wonder if I am doing something wrong.
Of course I can use the 'value' property to get all elements, and then use the replace array element with an index value, but this defeats the purpose of leaving all other elements untouched.
I had hoped to use this method specifically to avoid overwriting other array elements (such as happens with the replace array element) because the user might be modifying the second array element while I want to modify the first.
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w to change a single element in an array without affecting the others by using a reference in case I can use it elsewhere.> My situation is that I have an array of clusters on the front panel.
> Each element is used for a particular test setup, so if the array size
> is three, it means we have three identical test setups that can be
> used. The cluster contains two string controls and a button: 'device
> ID' string, 'start' button and 'status' string.
>
> In order to keep the diagrams simple, I would like to use a reference
> to the array as input into a subvi. This subvi will then modify a
> particular element in the array (i.e. set the 'status' string).
>
It isn't possible to get a reference to a particular element within an
array. There is only one reference to the one control that represents
all elements in the array.
While it may seem better to use references to update
an element within
an array, it shouldn't really be necessary, and it can also lead to
race conditions. If you write to an element that has the
possibility of the user changing, whether you write with a local, a
reference, or any other means, there is a race condition between the
diagram and the user. LV will help with this to a certain extent,
especially for controls that take awhile to edit like ones that use
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text, it will not be overwritten by the new value unless the key focus
is taken away from the control first. It is similar when moving a slider
or other value changes using the mouse. LV will write to the other values,
but will not rip the slider out of the user's hand.
To completely avoid race conditions, you can split the array into user
fields and indicators that are located underneath them. Or, if some
controls act as both, you can do like Excel. You don't directly type
into the cell. You choose w
hich cell to edit, but you modify another
location. When the edit is completed, it is incorporated into the
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User defined func: Unavble to merge two arrays in result list
Hi
I am trying to merge two arrays on the basis of "FEE" element in the input file;
Actually there is an Attribute Name and Value pair array coming in the input file which has 5 pairs already(Notification + 100 , oversize + 8 etc.) see example below;
<m0:Fees>ZB9</m0:Fees>
<m:Attribute>
<m0:Attributename>NOTIFICATION</m0:Attributename>
<m0:Attributevalue>100</m0:Attributevalue>
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<m0:Attributename>OVERSIZE</m0:Attributename>
<m0:Attributevalue>8</m0:Attributevalue>
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<m:Attribute>
<m0:Attributename>OVERWEIGHT</m0:Attributename>
<m0:Attributevalue>108</m0:Attributevalue>
</m:Attribute>
<m:Attribute>
<m0:Attributename>SIGNATURE</m0:Attributename>
<m0:Attributevalue>294</m0:Attributevalue>
</m:Attribute>
<m:Attribute>
<m0:Attributename>RTS</m0:Attributename>
<m0:Attributevalue>8</m0:Attributevalue>
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The condition is:
CASE 1. If the FEE doesn't exist in the file then only the Atrribute Name and Value in added to the Array
CASE 2 If FEE exist then add all the Atrribute Name and Value pairs as well as in the last index of Array add String "Fee" in Attributename and String "ZB9" in Attributevalue.
CASE 1 is working fine.
but in CASE 2 even if i m taking an output array of length Attributename +1 and Attributevalue +1 and trying to add "Fee" and "ZB9" respectively, it never happens.
Please have a look at the code below;
//write your code here
public void ud_Attributename(String[] Fees,String[] Attributename,ResultList result,Container container){
String attribute_copy[]=new String[Attributename.length+1];
String attribute_name[]=new String[Attributename.length];
String array_copy1[]=new String[Attributename.length+1];
//int len =Attributename.length;
if(Fees[0]!=null)
if(Fees[0].equals("ZB0"))
Fees[0]="01";
else if(Fees[0].equals("ZB5"))
Fees[0]="02";
else if(Fees[0].equals("ZB6"))
Fees[0]="03";
else if(Fees[0].equals("ZB9"))
Fees[0]="04";
try{
if((Fees[0]=="01")||(Fees[0]=="02")||(Fees[0]=="03")||(Fees[0]=="04"))
for(int x=0;x<=Attributename.length;x++)
if(x==Attributename.length)
array_copy1[x]="Fee";
else{
array_copy1[x]=Attributename[x];
result.addValue(array_copy1[x]);
else
for(int i=0;i<=len;i++)
attribute_name<i>=Attributename[i+1];
result.addValue(attribute_name<i>);
}catch(Exception e)
{e.printStackTrace();}
Same way i've used for Attributevalue.
But the result is
<ATTRIBUTEPAIR>
<PAIR>
<NAME>NOTIFICATION</NAME>
<VALUE>04</VALUE>
</PAIR>
<PAIR>
<NAME>OVERSIZE</NAME>
<VALUE>8</VALUE>
</PAIR>
<PAIR>
<NAME>OVERWEIGHT</NAME>
<VALUE>108</VALUE>
</PAIR>
<PAIR>
<NAME>SIGNATURE</NAME>
<VALUE>294</VALUE>
</PAIR>
<PAIR>
<NAME>RTS</NAME>
<VALUE>8</VALUE>
</PAIR>
</ATTRIBUTEPAIR>
Please suggest where i am wrong. ur help is very much appreciated.
Thnks in advancethis is i am doing now
//write your code here
String attribute_copy[]=new String[Attributename.length+1];
String attribute_name[]=new String[Attributename.length];
String attribute_name1[]={"Fee"};
//String[] Attributename.copyTo(attribute_name1,0);
//String[] attribute_name1 = (String[]) Attributename.Clone();
//String fees;
String array_copy1[]=new String[Attributename.length];
int len =Attributename.length;
for(int y=0;y<len;y++){
array_copy1[y]=Attributename[y];
if(Fees[0]!=null)
if(Fees[0].equals("ZB0"))
Fees[0]="01";
else if(Fees[0].equals("ZB5"))
Fees[0]="02";
else if(Fees[0].equals("ZB6"))
Fees[0]="03";
else if(Fees[0].equals("ZB9"))
Fees[0]="04";
else if(Fees[0].equals("ZA1"))
Fees[0]="05";
else if(Fees[0].equals("ZA2"))
Fees[0]="06";
try{
if((Fees[0]=="01")||(Fees[0]=="02")||(Fees[0]=="03")||(Fees[0]=="04")||(Fees[0]=="05")||(Fees[0]=="06"))
int j=0;
for(int a=0;a<=len;a++)
if(j==0&&attribute_copy[j]==null)
attribute_copy[j]="Fee";
else
//int b=-1;
for(int i=0;i<=len;i++)
if(i==j)
//i=i-1;
attribute_copy[j]=array_copy1[i-1];
break;
else{
continue;}
result.addValue(attribute_copy[j]);
j+=1;
else
for(int i=0;i<=len;i++)
attribute_name<i>=Attributename[i+1];
result.addValue(attribute_name<i>);
}catch(Exception e)
{e.printStackTrace();}
and the result in queue is
SUPPRESS
[FEE]
[NOTIFICATION]
[NOTIFICATION]
[OVERSIZE]
[OVERSIZE]
[OVERWEIGHT]
[OVERWEIGHT]
[SIGNATURE]
[SIGNATURE]
[RTS]
[RTS]
but in the output i m getting
<ATTRIBUTEPAIR>
<REF_HANDLE>0001</REF_HANDLE>
<PAIR>
<NAME>Fee</NAME>
<VALUE>04</VALUE>
</PAIR>
<PAIR>
<NAME>OVERSIZE</NAME>
<VALUE>8</VALUE>
</PAIR>
<PAIR>
<NAME>OVERWEIGHT</NAME>
<VALUE>108</VALUE>
</PAIR>
<PAIR>
<NAME>SIGNATURE</NAME>
<VALUE>294</VALUE>
</PAIR>
<PAIR>
<NAME>RTS</NAME>
<VALUE>8</VALUE>
</PAIR>
</ATTRIBUTEPAIR>
Notification is missing. -
Hello All.
As indicated in the title, I am trying to read part of an array element.
What I'm doing is reading values from a LeCroy scope using a "write" than "read" I have returned the read values into an array but the issue is the scope returns a value "1, 52.33E-3"
I simply want the element to be 52.33 that way I can use that for other calculations.
For example my array is.
"1, 34.334E-3"
"1, 53.343E-3"
"1, 143.232E-"
And I want it to be
34.334
53.343
143.232
Thanks!
Solved!
Go to Solution.Another option is to use Spreadsheet String to Array and use the comma as the delimiter. It can actually change your string into an array of numbers. Then you just index out the number you want.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines -
Unlimited number of array elements, help please!
Hi everyone,
I have written this code for comparing two arrays but i don't know how to accept all types array lengths. Now i am limited to 5 elements and i want it to accept the the users desired number of elements. How should i do?
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verktyg.sort(nyvektor);
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int b = 1;
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b++;
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Arrays.sort(nyvektor);
int counter1= 0;
for(int i = 1; i < nyvektor.length; i++)
if(nyvektor[i] == nyvektor[i-1])
counter1++;
int[] intersection = new int[counter1];
//c[0] = C[0];
int a = 0;
for(int i = 1; i < nyvektor.length; i++)
if(nyvektor[i] == nyvektor[i-1])
intersection[a] = nyvektor[i];
a++;
for(int i=0; i<intersection.length; i++)
System.out.print(" " +intersection[i]);
System.out.println();
System.out.println("Differensen ar: ");
Arrays.sort(nyvektor);
int counter2 = 0;
for(int i = 1; i < nyvektor.length; i++)
if(nyvektor[i] == nyvektor[i-1])
counter2++;
int[] difference = new int[vektor1.length-counter];
boolean falsk = false;
int k=0;
for(int i = 0; i < vektor1.length; i++)
for(int d=0; d<vektor21.length; d++)
if(vektor1[i]!=vektor21[d])
falsk = true;
else
falsk = false;
break;
if(falsk)
difference[k] = vektor1[i];
k++;
for(int i=0; i<difference.length; i++)
System.out.print(difference[i] + " ");How about this?import java.util.*;
import java.io.*;
class DynamicVectors
public static void main (String[] args)
BufferedReader console
= new BufferedReader (new InputStreamReader (System.in));
String consoleLine = "";
StringTokenizer tokenizer;
System.out.print ("Hur m�nga Vektorer ska lagras? ");
try
consoleLine = console.readLine();
catch (IOException ioe)
System.out.println (ioe);
tokenizer = new StringTokenizer (consoleLine);
int antal = Integer.parseInt (tokenizer.nextToken());
if (antal<2)
System.out.println("Du beh�ver 2 st vektorer");
for (int j=0 ; j<antal-1; j++)
int vektorSize;
System.out.print("Ange vektor1: ");
try
consoleLine = console.readLine();
catch (IOException ioe)
System.out.println (ioe);
// Here's where the fun starts...
tokenizer = new StringTokenizer (consoleLine);
vektorSize = tokenizer.countTokens();
int[] vektor1 = new int [vektorSize];
for (int i = 0; i < vektor1.length; ++i)
vektor1 = Integer.parseInt (tokenizer.nextToken());
// ...and that's all there is to it.
int langd = vektor1.length;
System.out.print("Ange vektor2: ");
try
consoleLine = console.readLine();
catch (IOException ioe)
System.out.println (ioe);
// Here's where the fun starts...
tokenizer = new StringTokenizer (consoleLine);
vektorSize = tokenizer.countTokens();
int[] vektor21 = new int [vektorSize];
for (int i = 0; i < vektor21.length; ++i)
vektor21 [i] = Integer.parseInt (tokenizer.nextToken());
Arrays.sort (vektor21); -
I have an existing VI where the original programmer has a 2D array of booleans.
He sets the Array Disabled property to Disabled and Grayed Out.
He is also setting the Array Element.Disabled property to Disabled and Grayed Out.
I am not understanding why it is also necessary to do the latter.Yeah, my quick test shows there is no point in also setting the disabled property of the control in the array.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines -
Chart array elements separately
Labview forum,
I have a for loop which produces an array of 2 elements.
This is contained within an outer loop. Inside the outer loop, I have connected the array to a chart function. For each outer loop iteration, the the chart plots both array elements as sequential elements in the same plot. This was not the behaviour I wanted.
Instead, with each outer loop increment, I would like each array element to be added to a separate curve on the same chart axes. Thus, in this case, two curves would be plotted simultaneously.
How can I achieve this?
Attached is a simple example of my current situation.
Regards,
Jamie
Message Edited by Jamieg on 09-17-2007 06:45 AM
Using Labview version 8.0
Attachments:
sample chart loop.vi 14 KB
sample chart loop1.vi 14 KBAn alternative solution uses the "array to cluster" function. (Don't forget to set the cluster size!)
Message Edited by altenbach on 09-17-2007 07:50 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
sample_chart_loop1MOD.vi 15 KB
multichart.png 2 KB -
Change array element "initialized" property
I'm a newcomer here. And it is a simple question.
The aim of this part is to save the array data.
You can see that if the array element is uninitialized, it won't be saved to spreadsheet, which saves space in the disk. So can I change the "initialized" property of this array element back to unitialized?
Thanks
Solved!
Go to Solution.You can "right-click the element...data operations...delete element".
(This has nothing to do with "uninitialized". The size of the array is indicated by the bright elements, the dull elements are outside the valid range, which has nothing to do with the size of the container. Your first array has two elements and your second array has three elements.)
LabVIEW Champion . Do more with less code and in less time .
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