How to accept only numbers and whitespace in java

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  Java.util.HashMap has generic type parameters, please use GenericTypeIndicator instead

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  Java.lang.nullpointerexception: cannot invoke "java.lang.charsequence.length()" because "this.text" is null

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  How to remove duplicate elements from char array in java

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  In java write a code that suppose the following input is supplied to the program: 9 Then, the output should be: 12096 (99+999+9999+999)

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  Hide element selenium

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