读程序,写出和程序输出格式一致的输出结果。public class J_Test {public static void mb_method(int i) {try {if(i == 1)throw new Exception();System.out.print("1");} catch(Exception ex) {System.out.print("2");return;} finally {System.out.print("3");}System.out.print("4");}public static void main(String[] args) {mb_method(0);mb_method(1);}}
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请阅读程序,写出程序运行结果 。public class Demo8 {public static void main(String args[]) {int b = get();System.out.println(b);}public static int get() {try {return 1;} finally {return 2;}}}
请阅读程序,然后写出程序运行结果。(注意输出不换行)public class Demo {public static void main(String arge[]) {try {System.out.print("1");if (true)return;} catch (RuntimeException e) {System.out.print("2");return;} catch (Exception e) {System.out.print("3");return;} finally {System.out.print("4");}System.out.print("5");}}
请阅读程序,然后写出程序运行结果 。(请注意输出不换行)public class Demo3 {public static void main(String[] args) {int a=9,b=0;double x=9,y=0;try {int c=a/b;}catch(Exception e1) {System.out.print("1");try {double z=x/y;}catch(Exception e2) {System.out.print("2");}finally {System.out.print("3");}}finally {System.out.println("4");}}}
当一个非抽象类实现接口时,沒有必要实现接口中的所有抽象方法。
A. 对
B. 错