concat « string « Java Data Type Q&A





1. Is there a difference between String concat and the + operator in Java?    stackoverflow.com

Duplicate

java String concatenation
I'm curious what is the difference between the two. The way I understand the string pool is this: This creates 3 string objects in the string pool, for ...

2. Java - is there an Inbuilt function for concatenating the Strings in a String[]?    stackoverflow.com

Or a better way than this?

String concat(String[] strings) {
  StringBuilder out = new StringBuilder();

  for(String next: strings) {
    out.append(next);
  }

  return out.toString();
}
No worries if ...

3. Concat over '+' operator for string concatenation    stackoverflow.com

String today = someSimpleDateFormat.format(new Date());
Calendar rightNow = Calendar.getInstance();
int hour = rightNow.get(Calendar.HOUR_OF_DAY);
int minute = rightNow.get(Calendar.MINUTE);
String hourString = String.valueOf(hour);
String minuteString = String.valueOf(minute);

if(hourString.length() == 1){
    hourString = '0'.concat(hourString);
}

if(minuteString.length() == 1){
  ...

4. why concat() is not working here? , java    stackoverflow.com

Consider the code below,

String s = "TEST";
String s2 = s.trim();

s.concat("ING");
System.out.println("S = "+s);
System.out.println("S2 = "+s2);
Output obtained :
S = TEST
S2 = TEST
BUILD SUCCESSFUL (total time: 0 seconds)
Why "ING" is not concatenated?

5. Java; is += more efficient that .concat?    stackoverflow.com

I've been reading code produced by other developers on my team, they seem to favour using += for String concatenation, whereas I prefer using .concat() as it feels easier to read. I'm ...

6. Difference between string.concat() and + operator    stackoverflow.com

Possible Duplicate:
Is there a difference between String concat and the + operator in Java?
Is there any difference between:
String A = "Hello";
String B = A.concat("Testing");
and
String ...

7. String class: + vs concat    coderanch.com

The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - ...

8. String Concat    coderanch.com

Originally posted by jignesh soni: So how do you know when next GC is and my other part is unanswered yet. I am not clear wheen we concat two strings, third string will be created and which one of these three strings will not have reference, probably newly created concatted string right ? if you write the code as in your ...

9. Difference between '+' and concat() method in String    coderanch.com

Not quite. + does use a StringBuffer or StringBuilder, but concat() creates a new char[] with the contents of the current String and the String to append, and returns a new String based on that array: public String concat(String str) { int otherLen = str.length(); if (otherLen == 0) { return this; } char buf[] = new char[count + otherLen]; getChars(0, ...





10. String concat    coderanch.com

13. String Concat    coderanch.com

Hi, I would like to concat few strings into one. Below shows the code (as suggested yesterday in the previous post) of extracting certain values from string a. for (int r = 1;r"+newStr3); } ...

14. adding string methods? not concat    forums.oracle.com

How can I add together strings such as "1" + "2" = "3" not "1" + "2" = "12" if there is no way to do this, how can I convert a string value such as "1" to 1, so I can then add these integers together? Any help is appreciated. thanks, Patrick.

15. Method w/ String's concat not working    forums.oracle.com

16. String Manipulation.concat    forums.oracle.com





17. Using String.concat() inside a function    forums.oracle.com

rocketGhost wrote: Hello everyone, Hopefully this will be easy to figure out - I am primarily a C++ programmer, learning Java. Thus far I have been under the impression that when I pass any Object to a function, it's always like passing a pointer in C++ (unless I use 'final'); It's just like passing a pointer in C (which is always ...

18. String concat Problem    forums.oracle.com

20. Concat to a single string    forums.oracle.com

Hi I need help to concat string from a file. I want to concat just the 2's into a single string but i want to keep the order and use only one vector as the result. Below is the sample data 1|000000000010000000|CLUTCH,OILWELL E-2000,NEUTRAL BRAKE|KBSB|19971008|20040322||VIT|01AAAA|0111010023|PCE||||||| 0.0||05| 2|000000000010000000|CLUTCH,OILWELL E-2000,NEUTRAL BRAKE. 2|000000000010000000|PARTS FOR DRAWWORKS AND HOISTS. 2|000000000010000000|RATING : 2,000 HP. 2|000000000010000000|DRILLING DEPTH : 20,000 ...

21. string.concat(str) and string += str    forums.oracle.com

22. String concat    forums.oracle.com

23. how to concat "tab" to string ??    forums.oracle.com

24. Concat two string without 'losing' memory...    forums.oracle.com

26. string concat problem    forums.oracle.com

public String concat(String str)Concatenates the specified string to the end of this string. If the length of the argument string is 0, then this String object is returned. Otherwise, a new String object is created, representing a character sequence that is the concatenation of the character sequence represented by this String object and the character sequence represented by the argument string. ...

27. String Concat doesn't work    forums.oracle.com