How to add two string array members into one string variable

Question

I've been trying to figure out how to add an extra string array member to a string variable with no luck. Here is the code.

 myDirString = myDirString.trim();
    String[] myDirStringParts = myDirString.split(" +");

    MySize = myDirStringParts[0];
    MyNum =  myDirStringParts[1];
    Total =  myDirStringParts[2];
    MyName = myDirStringParts[3];

Basically I want myDirStringParts[2]; to also be included into MyName.

if you are getting an out of bounds error it means the split isn't producing 4 parts, which means there aren't 4 parts separated by " +", perhaps you should show the value of myDirString — Smern
– Smern, Commented Apr 20, 2013 at 2:19

Bohemian · Accepted Answer · 2013-04-20 02:58:57Z

3

MyName = myDirStringParts[3] + myDirStringParts[2];

will work.

edited Apr 20, 2013 at 2:58

Bohemian♦

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answered Apr 20, 2013 at 2:40

Michael Hall

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6 Comments

oxxi Over a year ago

well the problem is that all the strings im passing into MyDirectory are the same except the last one. The last one is short by 1 array. Hence the out of bounds, but I'm supposed to pass the third array member from the last string to MyName. It's really tricky.

oxxi Over a year ago

2365106332 1140 SUB-TOTAL: E:\WIS26\MYSQL

oxxi Over a year ago

91535864328 301122 TOTAL

oxxi Over a year ago

So like above, the last string would be 4th one, and I want "TOTAL" to be MyName as well.

Michael Hall Over a year ago

if (myDirStringParts.length == 4) MyName = myDirStringParts[3]; else MyName = myDirStringParts[2];

|

vijay · Accepted Answer · 2013-04-20 04:31:57Z

1

Simply

MyName = myDirStringParts[3] + myDirStringParts[2];

should do the trick.

However, i notice a few things about your code that i would like to point out:

Declare the variables MyName, Total, MyNum, MySize.
Make sure that myDirStringParts contains atleast 3 elements after the split(" +") call.

You can do this by the following code snippet:

if(myDirStringParts.length >= 4) {  
    MySize = myDirStringParts[0];
    MyNum = myDirStringParts[1];
    Total = myDirStringParts[2];
    MyName = myDirStringParts[3] + myDirStringParts[2];
}  else {  
    // print out an error message.  
    System.err.println("myDirString does not contain all the required data!");  
}

edited Apr 20, 2013 at 4:31

answered Apr 20, 2013 at 2:39

vijay

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1 Comment

Matthew Flaschen Over a year ago

It should be at least 4, since 3 is the 4th element, 0-indexed.

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