source: java2python/core/src/test/remove/testcode/Remove.java

package testcode;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.jdt.annotation.NonNull;

/**
 * Test various remove, removeall, etc.
 */
public class Remove {

        static public void main(String[] args) {
                testRemoveFromList();
                testRemoveFromSet();
        }

        private static void testRemoveFromList() {
                final @NonNull List<@NonNull String> lst = new ArrayList<>(
                                Arrays.asList("a", "b", "c", "b"));
                boolean result = lst.remove("b");
                if (!result)
                        throw new IllegalStateException("removing b should have succeeded");
                result = lst.remove("b");
                if (!result)
                        throw new IllegalStateException("removing b should have succeeded");
                result = lst.remove("b");
                if (result)
                        throw new IllegalStateException("removing b should have failed");
                System.out.println("ok0");
        }

        private static void testRemoveFromSet() {
                final @NonNull Set<@NonNull String> st = new HashSet<>(
                                Arrays.asList("a", "b", "c", "b"));
                // note, duplicate b, one will be removed as this is a set.
                boolean result = st.remove("b");
                if (!result)
                        throw new IllegalStateException("removing b should have succeeded");
                result = st.remove("b");
                if (result)
                        throw new IllegalStateException("removing b should have failed");
                System.out.println("ok1");
        }

}