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- package ch.claude_martin;
- import java.util.ArrayList;
- public class SomeClass {
- String someField;
- SomeClass(String value) {
- this.someField = value;
- }
- public static void main(String[] args) {
- ArrayList<SomeClass> list = new ArrayList<>();
- list.add(new SomeClass("Bob"));
- list.add(new SomeClass("Jane"));
- list.add(new SomeClass("Sepp"));
- list.add(new SomeClass("Renée"));
- System.out.println(list.contains(new SomeClass("Bob"))); // false
- System.out.println(list.stream().anyMatch(o -> "Bob".equals(o.someField))); // true
- }
- }
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