query: How to check if a string is a valid integer?
positive_passages.docid: 24937
positive_passages.text: What's the best way to check if a String represents an integer in Java?
negative_passages.docid: 41380
negative_passages.text: How to check if a given Regex is valid?
negative_passages.docid: 31372
negative_passages.text: Why does this accept invalid input?
negative_passages.docid: 143939
negative_passages.text: How do you use: isalnum, isdigit, isupper to test each character of a string?
negative_passages.docid: 83418
negative_passages.text: How do I get what's inbetween " " in a user inputted String? Java
negative_passages.docid: 10204
negative_passages.text: How to properly compare two Integers in Java?
negative_passages.docid: 94839
negative_passages.text: Check whether a string is not null and not empty
negative_passages.docid: 149521
negative_passages.text: Java - Convert integer to string
negative_passages.docid: 139466
negative_passages.text: How to test if a double is an integer
negative_passages.docid: 34172
negative_passages.text: How to parse a string into a nullable int
negative_passages.docid: 29812
negative_passages.text: How do I test if a variable is a number in Bash?
negative_passages.docid: 106634
negative_passages.text: Check if a value from scanf is a number?
negative_passages.docid: 150982
negative_passages.text: Java String - See if a string contains only numbers and not letters
negative_passages.docid: 4273
negative_passages.text: How to do an Integer.parseInt() for a decimal number?
negative_passages.docid: 2807
negative_passages.text: How do I parse a string to a float or int?
negative_passages.docid: 110451
negative_passages.text: How to check if a string is numeric?
negative_passages.docid: 114378
negative_passages.text: How to check if the string is empty?