单项选择题
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()
A. 11
B. 12
C.编译失败
D.运行时异常被抛出
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单项选择题
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?()
A. false
B. true
C.编译失败
D.运行的时候有异常抛出 -
单项选择题
现有: class Passer f 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?()
A.55
B.56
C.65
D.66 -
单项选择题
现有: class Top { static int x=l; public Top (inty) { x*=3; } } class Middle extends Top { public Middle() {x+=1; ) public static void main (String [] args) { Middle m = new Middle(); System. out .println (x); } } 结果为:()
A.1
B.2
C.3
D.编译失败
