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);
}
}
举一反三
- 下列程序的运行结果是（）。 public class Test public static void main ( String [ ] args ) int count = 0 for( int i = 1 i < 5 i = 2) for( int j = 1 j< = 10 j = 3) count System .out .print (count ) _
- （9-3）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"); } } }
- 下面程序的执行结果是（ ）。public class Test {public static void main(String[] args) {new Test().test();}public void test(){try{System.out.print("try");}catch(ArrayIndexOutOfBoundsException e){System.out.print("catch1");}catch(Exception e){System.out.print("catch2");}finally{System.out.println("finally");}}} A: try finally B: try catch1 finally C: try catch2 finally D: finally
- public class test { public static void main(String args[]) { int m=0; for ( int k=0;k<2;k++) method(m++); System.out.println(m); } public static void method(int m) { System.out.print(m); } }
- 定义类Block和类Demo，运行Demo的输出结果是。 class Block{ {//代码1 System.out.print("1"); } static{//代码2 System.out.print("2"); } {//代码3 System.out.print("3"); } public Block() {//代码4 System.out.print("4"); } static void show() {//代码5 System.out.print("5"); } static {//代码6 System.out.print("6"); } } //定义测试类Demo public class Demo { public static void main(String[] args) { new Block().show(); new Block() } }
内容
- 0
以下程序的输出结果为?public class Test {public static void main(String args[]) {for ( int k = 0; k < 3; k++)System.out.print("k");}}
- 1
以下程序的运行结果是：() public class Increment{ public static void main(String args[]) { int a; a = 6; System.out.print(a); System.out.print(a++); System.out.print(a); } }
- 2
请说出下列程序的输出结果_____________，_____________。import java.io.IOException;public class E {public static void main(String args[]){try { methodA();}catch(IOException e){System.out.print("你好");return;}finally {System.out.println("thanks");}}public static void methodA() throws IOException{throw new IOException();}}
- 3
请写出以下程序运行结果： public class Main { public Main() { System.out.print("main "); } public Main(String s) { this(); System.out.print("main with "+s); } public static void main(String[] args) { Main main = new Main("wow"); } }
- 4
import java.io.*; class Person{ public void print(){System.out.print("Person ");} public void printMyGender(String s){ this.print(); System.out.print(s+" "); } } class Gender{ String type="gender"; public void print(Person p){p.printMyGender(type);} } class Female extends Gender{ public Female(){ type="female"; } } class Male extends Gender{ public Male(){ type="male"; } } class Employee extends Person{ public void print(){ System.out.print("Employee ");} } class Manager extends Employee{ public void print(){ System.out.print("Manager ");} } public class Test{ public static void main(String[] args){ Manager man = new Manager(); Employee em = new Employee(); Gender gender1 = new Male(); Gender gender2 = new Female(); gender1.print(man); gender2.print(em); } } 对于以上代码，其运行结果是