更多"下列程序的执行结果是 public class Testhh "的相关试题:
[单项选择]下列程序的执行结果是 public class Testff public static void main(String args[]) String sl=new String("I am boy"); String s2=new String("I am boy"); System.out.println(sl==s2);
A. true
B. false
C. "I am boy"
D. 都不正确
[单项选择]下面程序的输出结果是
public class Test
public static void main(String[] args)
int[]array=2,4,6,8,10;
int size=6;
int result=-1:
try
for(int i=0;i<size&&result==-1;i++)
if(array[i]==20)result=i;
catch(ArithmeticException e)
System.out.println("Catch---1");
catch(ArrayIndexOutOfBoundsException e)
System.out.println("Catch---2");
catch(Exception e)
System.out.println("Catch---3");
A. Catch---1
B. Catch一--2
C. Catch---3
D. 以下都不对
[单项选择]下面程序段的输出结果是
public class Test
public static void main(Stringargs[])
int x,y;
x=(int)Math.sqrt(5)/2+(int)Math.random( )*5/2;
y=(int)Math.sqrt(3)/2+(ht)Math.random( )*3/2;
if(x>y)
System.out.println(”x>y”);
else if(x=y)
System.out.println(”x=y”);
else
System.out.Println(”x<y”);
A. x>y
B. x=y
C. x<y
D. 编译错误
[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 n=5,sum=O;
while(n>0)
sum+=n;
--n;
System.out.println("sum is "+Sum);
A. sum is 14
B. sum is 15
C. sum is 10
D. sum is 5
[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 n=5,sum=0;
while(n>0)
sum+=n;
--n;
System.out.println("sum is"+sum);
A. sum is 14
B. sum is 15
C. sum is 10
D. sum is 5
[单项选择]下面程序的输出结果是 public class Test{ public static void main(String[] args){ int[]array={2,4,6,8,10}; int size=6; int result=-1: try{ for(int i=0;i<size&&result==-1;i++) if(array[i]==20)result=i; }catch(ArithmeticException e){ System.out.println("Catch---1"); }catch(ArrayIndexOutOfBoundsException e){ System.out.println("Catch---2"); }catch(Exception e){ System.out.println("Catch---3"); } } }
A. Catch---1
B. Catch一--2
C. Catch---3
D. 以下都不对
[单项选择]执行如下程序:
public class Test
public static void main (String args[])
int x=1,a=0,b=0;
switch (x)
case 0: b++;
case 1: a++;
case 2: a++;b++;
System.out.println("a=" +a ",b=" +b);
该程序的输出结果是( )。
A. a=2,b=1
B. a=1,b=1
C. a=1,b=0
D. a=2,b=2
[单项选择]下面程序段的输出结果是
class Test
public static void main(String args[])
MyThread t=new MyThread( );
t.displayOutput("t has been createD) ";
t.start( );
class MyThread extends Thread
public void displayOutput(String s)
System.out.println(s);
public void nm( )
displayOutput("t is running. ");
A. t has been created.
B. t has been created.
C. t is running.
D. 编译出错
[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,b; for(a=1, b=1; a<=100; a++){ if(b>=10)break; if (b%2==1){ b+=2; continue; } } System.out.println(a); } }
A. 5
B. 6
C. 7
D. 101
[单项选择]下列程序的运行结果是( )。
Public class sun
Public static void main(String args[])
int x=4,y=0;
if(Math.pow(x,2)==16)
y=x;
if(Math.pow(x,2)<15)
y=1/x;
if(Math.pow(x,2)>15)
y=(int)Math.pow(x,2)+1;
system.out.println(y);
A. 4
B. 17
C. 18
D. 0.25
[单项选择]下列程序的输出结果是( )。
Public class Test
Public static void main(String[]args)
int[]array=(2,4,6,8,10);
int size=6;
int result=-1;
try
for(int i=0;i<size&& result==-1;)
if(array[i]==20)result=i;
catch(ArithmeticException e)
System.out.println("Catch---1’);
catch(ArrayIndexOutOfBoundsException e)
System.out.println("Catch---2’);
catch(Exception e)
System.out.println("Catch---3");
A. Catch---1
B. Catch---2
C. catch---3
D. 以上都不对
[单项选择]下列程序执行的结果是( )。
public class Test
public static void main(String[ ] args)
int i, j, k;
for(int n=100; n<=200; n++ )
i = n/100;
j = n/10-i* 10;
k = n%10;
if(n == Math. pow(i, 3) + Math. pow(j, 3) + Math. pow(k, 3))
System. out. println(n);
A. 153
B. 167
C. 173
D. 137