To demo case matching in java : toLowerCase() and equalsIgnoreCase

StringDemo.java

import java.util.ArrayList;
import java.util.List;

public class StringDemo {
    public static void main(String[] args) {
        System.out.println("** Demo of String Functions **");
        List<String> demoList = new ArrayList<>();
        demoList.add("Bread");
        demoList.add("Jam");
        demoList.add("Egg");
        demoList.add("Milk");

        String key = "bread";

        for(String item : demoList){
            if(item.toLowerCase().equals(key.toLowerCase())){
                System.out.println(" Item found in list "+key);
            }
        }

        for(String item : demoList){
            if(item.equalsIgnoreCase(key)){
                System.out.println(" Item found in list "+key);
            }
        }
    }
}