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I've seen similar questions here and here.
But am not getting how to left pad a String with Zero.
input: "129018" output: "0000129018"
The total output length should be TEN.
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leftPad() method to left pad a string with zeros, by adding leading zeros to string.
The format() method of String class in Java 5 is the first choice. You just need to add "%03d" to add 3 leading zeros in an Integer. Formatting instruction to String starts with "%" and 0 is the character which is used in padding.
The zfill() method adds zeros (0) at the beginning of the string, until it reaches the specified length. If the value of the len parameter is less than the length of the string, no filling is done.
Use the String. format() method to pad the string with spaces on left and right, and then replace these spaces with the given character using String. replace() method. For left padding, the syntax to use the String.
If your string contains numbers only, you can make it an integer and then do padding:
String.format("%010d", Integer.parseInt(mystring)); If not I would like to know how it can be done.
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