现有:classWrench{publicstaticvoidmain(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
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现有:classWrench2{intsize;publicstaticvoidmain(String[]args){Wrench2w=newWrench2();w.size=11;Wrench2w2=go(w,w.size);System.out.print(w2.size);)staticWrench2go(Wrench2wr,ints){s=12;returnwr;}}结果为:
A. 11
B. 12
C. 编译失败
D. 运行时异常被抛出
现有:classTest2{publicstaticvoidmain(String[]args){int a,b,c;a=1;b=2;c=a+b;a+=2:}}以上代码中,哪一句是错误的?
A. a=1;
B. c=a+b;
C. a+=2:
D. int a,b,c;
现有:classTest4{publicstaticvoidmain(String[]args){booleanx=true;booleany=false;shortz=42;if((z++==42)&&(y=true))z++;if((x=false)||(++z==45))z++;System.out.println(¨z=”+z);}}结果为:
A. z=42
B. z=44
C. z=45
D. z=46
程序:classTestApp{publicstaticvoidmain(String[]args){intx=6;if(x>1)System.out.println("x>1");elseif(x>5)System.out.println("x>5");elseif(x<10)System.out.println("x<10");elseif(x<29)System.out.println("x<29");elseSystem.out.println(“以上都不是”);}}上述程序运行后的结果是哪项?
A. x>5
B. x>1
C. x<10
D. x<29