class Wrench { public static void main(String [] args) { Wrench w = new Wrench(); Wrench w2 = new Wrench(); w2 = go(w,w2); System.out.print(w2 == w); } static Wrench go(Wrench wr1, Wrench wr2) { Wrench wr3 = wr1; wr1 = wr2; wr2 = wr3; return wr3; } } 结果是什么?()
第1题:
现有:classWrenchfpublicstaticvoidmain(String[]args){Wrenchw=newWrench();Wrenchw2=newWrench();w2=go(w,w2);System.out.print(w2==w);}staticWrenchgo(Wrenchwrl,Wrenchwr2){Wrenchwr3=wrl;wrl=wr2;wr2=wr3;returnwr3;}结果是什么?()
A.false
B.true
C.编译失败
D.运行的时候有异常抛出
第2题:
语句type wr is(wr0,wr1,wr2,wr3,wr4,wr5);定义了一个状态机变量wr,可以直接对wr赋值。
第3题:
class Guy { String greet() { return "hi "; } } class Cowboy extends Guy { String greet() { return "howdy "; } } class Wrangler extends Cowboy { String greet() { return "ouch! "; } } class Greetings2 { public static void main(String [] args) { Guy g = new Wrangler(); Guy g2 = new Cowboy(); Wrangler w2 = new Wrangler(); System.out.print(g.greet()+g2.greet()+w2.greet()); } } 结果是什么?()
第4题:
现有: class Guy { String greet() { return "hi"; } } class Cowboy extends Guy { String greet() { return. "howdy";}} class Wrangler extends Cowboy { String greet() { return "orch!"; } } class Greetings2 { public static void main (String [] args) { Guy g=new Wrangler(); Guy g2=new Cowboy(); Wrangler w2=new Wrangler(); System. out .print (g.greet()+g2.greet()+w2 .greet()); } } 结果是什么?()
第5题:
pipe wrench()
第6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7题:
现有: class Wrench2 { int size; public static void main(String [] args) { Wrench2 w=new Wrench2(); w.size=II; Wrench2 w2=go(w, w.size); System. out .print (w2. size); } static Wrench2 go(Wrench2 wr. int s) { S=12; return wr; } } 结果为()
第8题:
cross connection line between two main fire lines
special wrench for the couplings in a fire hose line
tackle rigged to support a fire hose
None of the above
第9题:
torque wrench
monkey wrench
pipe wrench
slugging wrench
第10题:
管子钳
套筒扳手
开口销
贯穿螺栓
第11题:
斜口钳
凿子
管钳
台钳
第12题:
false
true
编译失败
运行的时候有异常抛出
第13题:
A spanner is a ______.
A.cross connection line between two main fire lines
B.special wrench for the couplings in a fire hose line
C.tackle rigged to support a fire hose
D.None of the above
第14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15题:
现有: class Wrench f public static void main(String [] args) { Wrench w=new Wrench(); Wrench w2=new Wrench(); w2=go (w, w2); System.out.print (w2==w); } static Wrench go (Wrench wrl, Wrench wr2) { Wrench wr3=wrl; wrl=wr2; wr2=wr3; return wr3; } 结果是什么?()
第16题:
现有: 1. class Wrench f 2.public static void main(String [] args) { 3.Wrench w=new Wrench( ); Wrench w2=new Wrench( ); 4. w2=go (w, w2); 5.System.out.print (w2==w); 6. } 7.static Wrench go (Wrench wrl, Wrench wr2) { 8.Wrench wr3=wrl; wrl=wr2; wr2=wr3; 9. return wr3; 10. } 11. } 结果是什么?()
第17题:
socket wrench()
第18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19题:
对
错
第20题:
11
12
编译失败
运行时异常被抛出
第21题:
cross connection line between two main fire lines
special wrench for tightening couplings in a fire hose line
tackle rigged to support a fire hose
None of the above
第22题:
breakout wrench
makeup tongs
chain tongs
pipe spinner
第23题:
a micrometer
a bowl
a feeler gauge
a wrench