java 基本类型和包装类的比较

public class BoxingTest {
    
    @Test
    public void test1(){
        String a = new String("1");
        String b = new String("1");
        Long c = 1L;
        System.out.println(a == b);
        System.out.println(c.equals(a));
        String d = "1";
        String e = "1";
        System.out.println(d==e);
    }
}