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String[] array = { "A", "C", "B" }; Class cls = Class.forName("java.util.Arrays"); Method method = cls.getDeclaredMethod("sort", new Class[] { Object[].class }); method.invoke(null, new Object[] { array }); System.out.println(array[0] + array[1] + array[2]); Class cls = Class.forName("java.lang.Integer"); Method method1 = cls.getDeclaredMethod("toString", new Class[] { int.class }); Method method2 = cls.getDeclaredMethod("toString", new Class[] { int.class, int.class }); String string1 = (String) method1.invoke(null, new Object[] { new Integer(255) }); String string2 = (String) method2.invoke(null, new Object[] { new Integer(255), new Integer(16) }); |
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