@Test public void shouldReturnFalseIfNumberIsOdd() { assertFalse(isEven.check(99)); }
public boolean check(int n) { return (n & 1) != 1; }
IsEven { public boolean check(int n) { return (n & 1) != 1; } }
IsEven { public boolean check(int n) { return (n & 1) != 1; }  }
IsEven { public boolean check(int n) { return (n & 1) != 1; }  boolean check(int n); }
IsEven { public boolean check(int n) { return (n & 1) != 1; }  boolean check(int n);  }