split function giving IndexOutOfBound errors

[dprogrammer]

I am using split function as follows. It only works if the number of elements in a string is equal to [ ] index. But if I increase the index to [4] but keep the string same ,it throws an error "java.lang.ArrayIndexOutOfBoundsException: 4 ". Below is just a sample string and in actuality a field will be replaced with the string "abc...". Since the field may contain from 1 to several elements, I am not sure how to dynamically use split function there. Thanks in advance for your valuable input.

("abc;def;ghi;jkl").split(";")[0]
+"\n\r"+("abc;def;ghi;jkl").split(";")[1]
+"\n\r"+("abc;def;ghi;jkl").split(";")[2]
+"\n\r"+("abc;def;ghi;jkl").split(";")[3]    -- untill here works fine with the given string
+"\n\r"+("abc;def;ghi;jkl").split(";")[4]   -- with addition of 4 (5th line) in index it throws error

 

[vishal29bhp]

See the split method returns the array of String[] so if you call "abc;def;ghi;jkl".split(";"); then it returns {"abc","def","ghi","jkl"} as Array of String[]. Now if you calling split() method so it must be in the loop.

 

Vishal

[dprogrammer]

Thanks Vishal. But I dont' think we can write a loop expression in iReport? Can we? There must be an easier way to split the string. This is very common feature in almost all programming languages and reporting tools.

[vishal29bhp]

If you want loop in iReport then you have to make a Scriptlet for it which is java code.