更多"package com.company.application; pu"的相关试题:
[单项选择] public class Pass{ public static void main(String[]args){ int x=5; Pass p=new Pass(); p.doStuff(x); System.out.print("mainx="+x); } void doStuff(intx){ System.out.print("doStuffx="+x++); } } What is the result?()
A. Compilation fails.
B. An exception is thrown at runtime.
C. doStuff x=6 main x=6
D. doStuff x=5 main x=5
E. doStuff x=5 main x=6
F. doStuff x=6 main x=5
[单项选择] public class Test{ public static void main(String[]args){ intx=5; boolean b1=true; boolean b2=false; if((x==4)&&!b2) System.out.print("l"); System.out.print("2"); if((b2=true)&&b1) System.out.print("3"); } } What is the result?()
A. 2
B. 3
C. 12
D. 23
E. 123
F. Compilation fails.
G. An exceptional ist hrown at runtime.
[单项选择]
阅读下列代码
public class Test{
public static void main(String args[]){
System. out. println((2<0) 10:8);
}
}
其运行结果是()
A. 2
B. 0
C. 10
D. 8
[单项选择] package com.sun.sjcp; public class Commander{ public static void main(String[]args){ //more code here } } Assume that the class fileis located in /foo/com/sun/sjcp/,the current directory is/foo/,and that the classpath contains“.“(current directory). Which command line correctly runs Commander?()
A. java Commander
B. java com.sim.sjcp.Commander
C. java com/sun/sjcp/Commander
D. java-cpcom.sun.sjcp Commander
E. java-cpcom/sun/sjcp Commander
[单项选择] 现有: public class Pet( ) public class Cat extends Pet{) 执行代码 Cat c- new Cat( ); Pet p= (Pet)c; 后下列哪项是正确的?()
A. Petp=(Pet)c运行错误
B. Petp=(Pet)c编译错误
C. Petp=(Pet)c止常执行
D. 以上都不对
[单项选择] public class Yippee2{ stati cpublic void main(String[]yahoo){ for(intx=1;xA. ab
B. bc
C. abc
D. Compilation fails.
E. An exception is thrown at runtime.
[单项选择] package test; class Target{ public String name="hello"; } What can directly access and change the value of the variable name?()
A. any class
B. only the Target class
C. any class in the test package
D. any class that extends Target
[单项选择] 程序: class TestApp{ public static void main (String[] args){ int x=6; if (x>l) System. out. println("x>l"); else if (x>5) System. out .println("x>5"); else if (x<10) System. out. println("xA. x>5
B. x>l
C. x<10
D. x<29
[单项选择] 现有: class TestApp{ public static void main (String[] args){ for (int i=0; iA. 0123
B. 012456789
C. 0123456789
D. 012
[单项选择]阅读下面程序 public class ConcatTest { public static void main(String[] args) { String str1="abc"; String str2="ABC": String str3=str1.concat(str2); System.out.println(str3); } } 程序运行的结果是
A. abc
B. ABC
C. abcABC
D. ABCabc
[单项选择]
阅读下面程序
pubic class Cycle{
public static void main(String args[]){
System. out. println(args[0]);
在命令行中输入java Cycle one two,该程序输出结果是()
A. Cycle
B. one
C. two
D. 上述A、B、C、均不对
[单项选择]阅读下列代码
public class Test 2005{
public static void main(String args[]){
System.out.println(~(0xa5)&0xaA) ;
}
}
其运行结果是【 】
A. 0xa5
B. 10
C. 0x50
D. 0xaa
[单项选择]阅读下列代码: public class Test{ public static void main(String args[]{ System.out.println(100%3); System.out.pnntln(100%3.0); } } 程序运行结果为( )。
A. 1和1
B. 1和1.0
C. 1.0各1
D. 1.0和1.0
[单项选择]阅读下面程序 public class Test2 { public static void main(String[] args) { int a=10,b=4.c=20,d=6; System.out.println(a++*b+c*--d); } } 程序运行的结果是
A. 144
B. 160
C. 140
D. 164
[单项选择]阅读下面程序 public class Test4 { public static void main(String[] args) { int 1=10,j=3; float m=213.5f,n=4.0f; System.out.println(i%j); System.out.println(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
[单项选择]阅读下面程序 public class Test3 { public static void main(String[] args) { int x=3,y=4,z=5; String s="xyz": System.out.println(s+x+y+z); } } 程序运行的结果是
A. xyz12
B. xyz345
C. xyzxyz
D. 12xyz
[单项选择]有下列程序段 public class fun { public static void main(String args[]) { char b[] = "Hello,you"; b[5] = 0; System.out.println(s); } 执行此程序后,得到的输出结果是( )。
A. Hello,you
B. Hello0you
C. Hello
D. 0
[单项选择]下列程序的执行结果是 public class Testgg { public static void main(String args[]) { float t=9.0f; int q=5; System.out.println((t++)*(- -q)); } }
A. 40
B. 36
C. 36.0
D. 40.0