string index out of bounds error in java (charAt) -


quick question. have code in program:

input = joptionpane.showinputdialog("enter word below") int = 0;   (int j = 0; j <= input.length(); j++)   {     system.out.print(input.charat(i));       system.out.print(" "); //don't ask this.       i++; }
  • input being user input
  • i being integer value of 0, seen

running code produces error:

exception in thread "main" java.lang.stringindexoutofboundsexception: string index out of range: 6
@ java.lang.string.charat(unknown source)
@ program.main(program.java:15)

if change charat int 0 instead of i, not produce error...
can done? problem?

replace:

j <= input.length()

... ...

j < input.length()

java string character indexing 0-based, loop termination condition should @ input's length - 1.

currently, when loop reaches penultimate iteration before termination, references input character @ index equal input's length, throws stringindexoutofboundsexception (a runtimeexception).


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