更多"阅读下面代码 public class { public sta"的相关试题:
[单项选择]阅读下面代码 public class Arrays { public static void main(String[] args) { int[] a=new int[5]; for(int i=0;i<a.length;i=i+1)a[i]=10+i; for(int i=0;i<a.length;i=i+1)System.out.println(a[i]); String[] s={"Frank","Bob","Jim"}; for(int i=0;i<s.length;i=i+1)System.out.println(s[i]); s[2]="Mike"; System.out.println(s[2]); } } 代码运行正确的结果是
A. 10 11 12 13 14 Mike Bob Frank Jim
B. 11 12 13 14 15 Frank Bob Mike Jim
C. 10 11 12 13 14 Frank Bob Jim Mike
D. 11 12 13 14 15 Mike Jim Bob Frank
[填空题]阅读下面代码
public class Test2
public static void main(String args[])
System.out.println(5/2);
其执行结果是______。
[填空题]public class Test
public static void main(String[ ] args)
String name[ ]=new String[5];
for(int i=0; i<args. length; ++i) name[i] = args[i];
System. out. println(name[2]);
命令行中的输入为:java Test a b
程序的输出是 【11】 。
[填空题]public class Sum
public static void main(String [] args)
int j=10;
System.out.println("j is : "+j);
calculate(j);
System.out.println("At last, j is : "+j);
static void calculate (int j)
for (int i = 0;i<10;i++)
j++;
System.out.println("j in calculate( ) is: "+j);
输出结果为:
j is : (1)
j in calculate( ) is : (2)
At last j is : (3)
[单项选择]阅读下列代码
public class Test
public static void main(String args[])
String s = "Test";
switch (s)
case "Java": System. out. print("Java"); break;
case "Language": System. out. print("Language"); break;
case "Test": System. out. print("Test"); break;
其运行结果是( )。
A. Java
B. Language
C. Test
D. 编译出错
[填空题]阅读下列代码
public class Test
public static void main (String args[])
System.out.println(5/2);
其执行结果是 【7】 。
[单项选择]阅读下面程序
public class Increment
public static void main (String args[]
int c;
c=5;
System.out.printIn(c);
System.out.printIn(c++)j
System.out.printIn (c);
程序运行结果是______。
A. 5
B. 5
C. 6
D. 6
[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]阅读下面程序
public class MyVal
public static void main(String[]args)
MyVal m=new MyVal( );
m.amethod( );
public void amethod( )
boolean b[]=new Boolean[5];
程序编译或运行的结果是
A. 1
B. null
C. ""
D. 编译不通过
[填空题]请阅读下面程序
public class Test
public static void main (String[] args)
int i,j;
for (i=1;i<5;i++)
for (j=1;j<=i;j++)
system.out.print (i+"X"+j+"="+i*j+" ");
System.out.println( );
程序执行完后,i循环和j循环执行的次数分别是 【12】 。
[填空题]阅读下列代码
public class Test2
public static void main(String args[])
System.out.println(5/2);
其执行结果是 【8】 。
[单项选择]给出下面代码段:
public class Test
public static void main(String args[] )
int m;
switch(m)
case 0: System.out.println("case 0");
case 1: System.out.println("case 1");
break;
case 2: break;
default: System.out.println("default");
下列m的值能引起输出“default”的是( )。
A. 0
B. 1
C. 2
D. 4
[单项选择]给出下面代码片段:
public class Test
public static void main (String args[ ])
int m;
switch(m)
case 0:System.out.println("case 0");
case 1:System.out.println("case 1"):break;
case 2:
default:System.out.println("default");
下列m的( )值将引起"default"的输出。
A. 1
B. 2
C. 4
D. 0
[单项选择]阅读下面程序
public class Test4
public static void main (String args[])
int i=10, j=3;
float m=213.5f,n=4.0f
System.out.printIn (i%j);
System.out.printIn (m%n);
程序运行的结果是______。
A. 1.0和1.5
B. 1和1.5
C. 1.0和2.5
D. 1和2.5