下列哪个选项的java源文件代码片段是不正确的? A: packagetestpackage;publicclassTest{} B: importjava.io.*;packagetestpaekage;publicclassTest{} C: importjava.io.*;classPerson{}publicclassTest{} D: importjava.io.*;importjava.awt.*;publicclassTest{}
下列哪个选项的java源文件代码片段是不正确的? A: packagetestpackage;publicclassTest{} B: importjava.io.*;packagetestpaekage;publicclassTest{} C: importjava.io.*;classPerson{}publicclassTest{} D: importjava.io.*;importjava.awt.*;publicclassTest{}
阅读下列代码 PublicclassTest { Publicstaticvoidmain(Stringargs[]) { System.out.println((3>2)?4:5); } } 其运行结果是()
阅读下列代码 PublicclassTest { Publicstaticvoidmain(Stringargs[]) { System.out.println((3>2)?4:5); } } 其运行结果是()
以下程序的运行结果为? publicclassTest2{ publicstaticvoidmain(Stringa[]){ System.out.println(3+4+'r='+3+4); } }
以下程序的运行结果为? publicclassTest2{ publicstaticvoidmain(Stringa[]){ System.out.println(3+4+'r='+3+4); } }
以下代码的输出结果? publicclassTest{ staticintx=5; publicstaticvoidmain(Stringargv[]){ change(x); x++; System.out.println(x); } staticvoidchange(intm){ m+=2; } }
以下代码的输出结果? publicclassTest{ staticintx=5; publicstaticvoidmain(Stringargv[]){ change(x); x++; System.out.println(x); } staticvoidchange(intm){ m+=2; } }
publicclassTest{publicintcall(){staticinti=0;i++;System.out.println(i);}publicstaticvoidmain(Stringargs[]){Testtest=newTest();test.call();}}
publicclassTest{publicintcall(){staticinti=0;i++;System.out.println(i);}publicstaticvoidmain(Stringargs[]){Testtest=newTest();test.call();}}
当编译和运行下列代码时会发生什么?PublicclassTest{publicstaticvoidmain(){System.out.println('helloworld');}}
当编译和运行下列代码时会发生什么?PublicclassTest{publicstaticvoidmain(){System.out.println('helloworld');}}
请阅读下面的程序,sum的值为()publicclassTest{publicstaticvoidmain(String[]args){intsum=0;for(inti=1;i=100;i++){if(i%2==1){continue;}sum+=i;}System.out.println(sum=+sum);}}
请阅读下面的程序,sum的值为()publicclassTest{publicstaticvoidmain(String[]args){intsum=0;for(inti=1;i=100;i++){if(i%2==1){continue;}sum+=i;}System.out.println(sum=+sum);}}
以下代码的输出结果是()。publicclassTest{publicstaticvoidmain(String[]args){double[]price=newdouble[5];price[0]=98.10;price[1]=32.18;price[2]=77.75;System.out.print((int)price[0]+""+(int)price[1]+""+(int)price[2]+""+(int)price[3]+""+(int)price[4]);}}
以下代码的输出结果是()。publicclassTest{publicstaticvoidmain(String[]args){double[]price=newdouble[5];price[0]=98.10;price[1]=32.18;price[2]=77.75;System.out.print((int)price[0]+""+(int)price[1]+""+(int)price[2]+""+(int)price[3]+""+(int)price[4]);}}
下面代码运行结果是()。publicclassTest{publicstaticvoidmain(String[]args){int[]a=newint[3];int[]b=newint[]{1,2,3,4,5};a=b;for(inti=0;i<=b.length;i++){System.out.print(a[i]+ " "); }}}[/i] A: 1 2 3 4 B: 1 2 3 C: 0 1 2 3 4 D: 数组越界异常
下面代码运行结果是()。publicclassTest{publicstaticvoidmain(String[]args){int[]a=newint[3];int[]b=newint[]{1,2,3,4,5};a=b;for(inti=0;i<=b.length;i++){System.out.print(a[i]+ " "); }}}[/i] A: 1 2 3 4 B: 1 2 3 C: 0 1 2 3 4 D: 数组越界异常
下列选项中可以正确定义一个抽象类的是() A: publicclassTest{} B: publicabstractinterfaceTest{}; C: publicabstractclassTest{} D: publicabstractTest;
下列选项中可以正确定义一个抽象类的是() A: publicclassTest{} B: publicabstractinterfaceTest{}; C: publicabstractclassTest{} D: publicabstractTest;