Ignoring upper case and lower case in Java

Question

I want to know how to make whatever the user inputs to ignore case in my method    public static void findPatient         if  myPatientList getNumPatients      0            System out println  No patient information is stored               else           System out print  Enter part of the patient name              String name   sc next            sc nextLine            System out print myPatientList showPatients name

User · Answer

I have also tried all the posted code  until I found out this one  if math toLowerCase Locale ENGLISH      Here whatever character the user input will be converted to lower cases

User · Answer

Use String toLowerCase   or String equalsIgnoreCase   methods  Some examples       String abc       Abc  toLowerCase        boolean isAbc    Abc  equalsIgnoreCase  ABC

User · Answer

You ignore case when you treat the data  not when you retrieve store it  If you want to store everything in lowercase use String toLowerCase  in uppercase use String toUpperCase   Then when you have to actually treat it  you may use out of the bow methods  like String equalsIgnoreCase java lang String   If nothing exists in the Java API that fulfill your needs  then you ll have to write your own logic

User · Answer

You have to use the String method  toLowerCase   or  toUpperCase   on both the input and the string you are trying to match it with  Example  public static void findPatient         System out print  quot Enter part of the patient name   quot        String name   sc nextLine         System out print myPatientList showPatients name         the other class ArrayList lt String gt  patientList   public void showPatients String name        boolean match   false       for String matchingname   patientList            if  matchingname toLowerCase   contains name toLowerCase                   match   true

User · Answer

use toUpperCase   or toLowerCase   method of String class

User · Answer

The  equalsIgnoreCase   method should help with that

[java] Ignoring upper case and lower case in Java

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