更多"阅读和理解下面程序段: class Manager extends "的相关试题:
[单项选择]阅读和理解下面程序段:
class Manager extends Employee
public Manager(String n,double s,int year,int month,int day)
super(n,s,year,month,day);
bonus=0;
public double getSalary( )
double baseSalary=super.gerSalary( );
return baseSalary+bonus;
public void setBonus(double b)bonus=b;
private double bonus;
Manager是Employee的子类,其理由是
A. Manager的适用范围较宽
B. extends关键字声明
C. Manager的域减小了
D. 雇员是一个经理
[单项选择]阅读和理解下面程序段: class Manager extends Employee{ public Manager(String n,double s,int year,int month,int day){ super(n,s,year,month,day); bonus=0; } public double getSalary( ){ double baseSalary=super.gerSalary( ); return baseSalary+bonus; } public void setBonus(double b){bonus=b; } private double bonus; } Manager是Employee的子类,其理由是
A. Manager的适用范围较宽
B. extends关键字声明
C. Manager的域减小了
D. 雇员是一个经理
[单项选择]
阅读和理解下面程序段:
class Manager extends Employee{
public Manager(String n,double s,int year,int month,int day) {
super(n,s,year,month,day);
bonus=O;
}
public double getSalary( ){
double baseSalary=super,gerSalary( );
return baseSalary+bonus;
}
public void setBonus(double b);
{
bonus=b;
}
private double bonus;
}
Manager是Employee的子类,其理由是()
A. Manager的适用范围较宽
B. extends关键字声明
C. Manager的域减小了
D. 雇员是一个经理
[填空题]请写出下面程序的运行结果:
public class Test extends TT
public static void main(String args[])
Test t=new Test("Tom.");
public Test(String s)
super(S);
System.out.print("How are you");
public Test( )
this("I am Jack.");
class TT
public TT( )
System.out.print("Hi!");
public TT(String s)
this( );
System.out.print("I am" +s);
结果:______。
[单项选择]执行下列程序段之后,变量n的值为( )。
public class Test
public static void main(String[ ] args)
int y = 2;
int z = 3;
int n = 4;
n=n+-y* z/n;
System. out. println(n);
A. 3
B. -1
C. -12
D. -3
[单项选择]下面程序段的输出结果是______。
public class Test
public static void main(String args[ ])
int[ ]a=new int[11];
int[ ]p=new int[4];
int k=5;
for(int i=1;i<=10;i++)
a[i]=i;
for(int i=1;i<=3;i++)
p[i]=a[i*i];
for(int i=1;i<=3;i++)
k=k+p[i]*2;
System.out.println(k);
A. 37
B. 31
C. 33
D. 35
[单项选择]执行下列程序段之后,变量b的值为( )。
public class Test
public static void main (String[] args)
int i = 12;
int j = 24;
boolean b1 = true;
booleanb=(j%i==0)&&(! b1) || (j/i! =2);
System. out. println (b);
A. true
B. false
C. 0
D. 1
[填空题]执行下列程序段后输出的结果是______。
public class Test{
public static void main(String args[]){
int x,y;
for(y=1,x=1;y<=50;y++){
if(x>=10)break;
if (x%2==1){
x+=5;
continue;
}
x-=2;
}
System.out.println(y);
}
}
[单项选择]阅读下面程序 public class ExampleStringBuffer { public static void main(String[] args) { StringBuffer sb=new StringBuffer("test"); System.out.println("buffer="+sb); System.out.println("length="+sb.length( )); } } 程序运行结果中,在“length=”后输出的值是
A. 10
B. 4
C. 20
D. 30