Posts Tagged ‘parse’

How to check if a Java String is an integer?

Java, Tip 5.6.2015 2 Comments

The Integer class has a number of static methods for parsing strings. For the case where we want to check if if a string contains a valid integer we can use the method Integer.parseInt() and catch the exception that is thrown when the number cannot be parsed.

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Using Scanner to read words from text file

Java, Tip 20.11.2014 1 Comment

Often you need to read a file line by line. Alternatively sometimes you want to read text word by word (for example to count the occurrence of different words). The Scanner classes next() method can be used for this as shown in the following example. You can find an example of the use of the…

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