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import java.util.Objects;

public class ExampleClass {

    private String privateField;

    public ExampleClass(String privateField) {
        this.privateField = privateField;
    }

    @Override
    public boolean equals(Object other) {
        return ((this == other) 
                || (other instanceof ExampleClass that 
                    && Objects.equals(this.privateField, that.privateField)));
    }

}