单项选择题
class WhileTests { public static void main(String [] args) { int x = 5; while (++x 〈 3) { --x; } System.out.println("x = " + x); } } 结果是什么?()
A.x = 2 B.x = 5 C.x = 6 D.编译失败
class DemoApp{ public static void main(String[] args){...
class DemoApp{ public static void main(String[] args){ int x = 5; int y = ++x + x++; S ystem.out.println(“y=”+y+”,x=”+x); } } 以上程序运行后的输出结果是哪项?()
A.y=10,x=5 B.y=11,x=6 C.y=12,x=7 D.y=11,x=7
class Parser extends Utils { public static void main (...
class Parser extends Utils { public static void main (String [] args) { try { System.out.print(new Parser().getInt("42")); } catch (NumberFormatException n) { System.out.println("NFExc "); } } int getInt(String arg) throws NumberFormatException { return Integer.parseInt(arg); } } class Utils { int getInt(String arg) { return 42; } } 结果为:()
A.42 B.NFExc C.42NFExc D.编译失败
class Parser extends Utils { public static void main(S...
class Parser extends Utils { public static void main(String [] args) { System.out.print(new Parser().getInt("42")); } int getInt(String arg) { return Integer.parseInt(arg); } } class Utils { int getInt(String arg) throws Exception { return 42; } } 结果为:()
A.42 B.编译失败 C.无输出结果 D.运行时异常被抛出