C.lass Test ( 15 ) {
Public static void main (String[] arge){
Test t = new Test();
t.start();
}
Public void run(){
System.out.println( “ Hello! ” );
}
[单选题]为使下列代码正常运行,应该在下划线处填入的选项是abstract class Person{public Person(String n)!name=n;}public____String getDescription();public String getName(){return name;}private String name;}A.staticB.privateC.abstractD.final
[试题]下列程序构造了一个 Swing Applet ,请在下划线处填入正确的代码Import javax.swing.*;Import java.awt.*;Public class SwingApplet extends ( 13 ) {Jlabel l = new Jlabel ( “ This is a Swing Applet. ” );Public void init(){C.ontainer contentPane = getContentPane();contentPane.add(1);
[单选题]为使下列代码正常运行,应该在下划线处填入的选项是ObjectInputStream in=new_____(new FileInputStream(“employee . dat”));E.mployee[]newStaff=(Employee[〕)in.readObject();in .cIose();A.ReaderB.InputStreamC.ObjectInputD.ObjectInputStream
[试题]( 15 )在下列 Java Applet 程序的下划线处填入代码,使程序完整并能够正确运行。import java.applet.*;import java.awt.*;public class HelloWorld ( 15 ) {public void paint(Graphics g){g.drawString( " Hello World! " ,25,25);}}
[问答题]请在下画线处填入代码,使程序正常运行并且输出“Hello!”。______________
[单选题]在下列代码中应填入下划线中的是______。public class FirstSample{public static void maim(______args[]){System.out.println(“你好!”);}}A.) staffB.) doubleC.) IntD.) StringA.B.C.D.
[单选题]为使下列代码正常运行,应该在下划线处填入的选项是int〔〕numbers=new int[n];for(Int i=0;i <numbers.____;i++)numbers[i]=i+1;A.sizeB.lengthC.dimensionD.measurement
[单选题]为使下列代码正常运行,应该在下划线处填入的选项是int〔〕numbers=new int[n];for(Int i=0;i <numbers.____;i++)numbers[i]=i+1;A.sizeB.lengthC.dimensionD.measurement
[单选题]下面程序中需要对 Employee 的对象进行存储,请在下划线处填入正确选项。class Employee implements ___________{…… }A.)ComparableB.)SerializableC.)CloneableD.)DataInput
[单选题]下面程序中需要对Employee的对象进行存储,请在下划线处填入正确选项。 class Employee implements______ { ……}A.ComparableB.SerializableC.CloneableD.Datalnput