JAVA

java hashmap key exists

@Test
public void whenKeyIsPresent_thenContainsKeyReturnsTrue() {
    Map<String, String> map = Collections.singletonMap("key", "value");
    
    assertTrue(map.containsKey("key"));
    assertFalse(map.containsKey("missing"));
}

java hashmap key exists

@Test
public void whenKeyIsPresent_thenContainsKeyReturnsTrue() {
    Map<String, String> map = Collections.singletonMap("key", "value");
    
    assertTrue(map.containsKey("key"));
    assertFalse(map.containsKey("missing"));
}