class Flibitz{ public static void main(String[] args){ int grop=7; new Flibitz().go(grop); System.out.print(grop); } void go(int grop){ if(++grop>7) grop++; System.out.print(grop); } } 结果为:()
第1题:
import java.util.*; class Banana3 { public static void main(String [] args) { int x = 2; Banana3 b = new Banana3(); b.go(x); } static { x += x; } void go(int x) { ++x; System.out.println(x); } } 结果为:()
第2题:
现有: class Parser (类)extends(继承) Utils { public static void main(String [] args) { System.out.print(输出打印)(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:()
第3题:
现有: 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()
第4题:
现有: class Thread2 implements Runnable { void run() { System.out.print("go "); } public static void main(String [] args) { Thread2 t2 = new Thread2(); Thread t = new Thread(t2); t.start(); } } 结果为:()
第5题:
class Passer { static final int x = 5; public static void main(String [] args) { new Passer().go(x); System.out.print(x); } void go(int x) { System.out.print(++x); } } 结果是什么?()
第6题:
public class Yikes { public static void go(Long n) {System.out.println(”Long “);} public static void go(Short n) {System.out.println(”Short “);} public static void go(int n) {System.out.println(”int “);} public static void main(String [] args) { short y= 6; long z= 7; go(y); go(z); } } What is the result?()
第7题:
class Wrench2 { int size; public static void main(String [] args) { Wrench2 w = new Wrench2(); w.size = 9; Wrench2 w2 = go(w, w.size); System.out.print(w2.size); } static Wrench2 go(Wrench2 wr, int s) { s = 7; return wr; } } 结果为:()
第8题:
现有: class ThreadBoth extends Threaa implements Runnable { public void run() (System.out.print("hi"); } public static voicl main (String [] args) { Thread tl=new ThreadBoth(): Thread t2 = new Thread (tl): tl.run(): t2.run(): } 结果为:()
第9题:
hi hi
hi
编译失败
运行时异常被抛出
第10题:
77
79
97
99
第11题:
2
3
5
编译失败
第12题:
99
编译失败
运行时异常被抛出
77
79
97
第13题:
class BitStuff { BitStuff go() { System.out.print("bits "); return this; } } class MoreBits extends BitStuff { MoreBits go() { System.out.print("more "); return this; } public static void main(String [] args) { BitStuff [] bs = {new BitStuff(), new MoreBits()}; for( BitStuff b : bs) b.go(); } } 结果为:()
第14题:
class Flibitz { public static void main(String [] args) { int grop = 7; new Flibitz().go(grop); System.out.print(grop); } void go(int grop) { if(++grop 〉 7) grop++; System.out.print(grop); } } 结果为:()
第15题:
class Bird { static void talk() { System.out.print("chirp "); } } class Parrot extends Bird { static void talk() { System.out.print("hello "); } public static void main(String [] args) { Bird [] birds = {new Bird(), new Parrot()}; for( Bird b : birds) b.talk(); } } 结果为:()
第16题:
现有: class TestMain { static int x = 2; static { x = 4; } public static void main(String... args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:()
第17题:
class TestMain { static int x = 2; static { x = 4; } static public void main(String[] args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:()
第18题:
class Beverage { Beverage() { System.out.print("beverage "); } } class Beer extends Beverage { public static void main(String [] args) { Beer b = new Beer(14); } public int Beer(int x) { this(); System.out.print("beer1 "); } public Beer() { System.out.print("beer2 "); } } 结果是什么?()
第19题:
现有 class Beverage { Beverage () { System.out.print ("beverage "); } } class Beer extends Beverage { public static void main{string [] args) { Beer b = new Beer (14) ; } public int Beer(int x) { this () ; System.out.print ("beerl") ; } public Beer() { System.out.print("beer2 "); } } 结果是什么?()
第20题:
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:()
第21题:
go
运行时异常被抛出
代码运行,无输出结果
编译失败
第22题:
55
56
65
66
第23题:
beer1 beverage
beer2 beverage
beverage beer1
编译失败