指出下列程序运行的结果 ( ) public class Example{ String str=new String("good"); char[]ch={'a','b','c'}; public static void main(String args[]){ Example ex=new Example(); ex.change(ex.otr,ex.ch); System.out.print(ex.str+"and"); System.out.print(ex.ch); } public void change(String str,char ch[])} str="test ok"; ch[0]≈'g'; } }
A.good and abc
B.good and gbc
C.test ok and abc
D.test ok and gbc
第1题:
【判断题】(10-8)运行下面程序,输出结果是true。 public class Demo6 { public static void main(String[] args) { String str1="good"; String str2="good"; System.out.println(str1==str2); } }
A.Y.是
B.N.否
第2题:
以下程序的输出结果是【 】。
include <stdio.h>
include <string.h>
char *fun(char *t)
{ char *p=t;
return (p+strlen(t)/2);
}
main()
{ char *str="abcdefgh";
str=ftm(str);
puts(str);
}
第3题:
下列程序运行的结果为:
public class Example{
String str=new String("good");
char[] ch={'a','b','c'};
public static void main(String args[]){
Example ex=new Example();
ex.change(ex.str,ex.ch);
System.out.print(ex.str+" and ");
Sytem.out.print(ex.ch);
}
public void change(String str,char ch[]){
str="test ok";
ch[0]='g';
}
}
A. good and abc
B. good and gbc
C. test ok and abc
D. test ok and gbc
第4题:
以下程序运行后的输出结果是______。
include <iostream>
include <string>
using namespace std;
class Y;
class X
{
int x;
char *strx;
public:
X(int a, char *str)
{
x=a;
strx=new char[strlen(str)+1]
strcpy (strx,str);
}
void show(Y &ob);
};
class Y
{
prlvate:
int y;
char *stry;
public:
Y(int b,char *str)
{
y=b;
stry=new char[strlen(str)+1];
strcpy(stry,str);
}
friend void X::show(Y &ob);
};
void X::show{Y &ob)
{
cout<<strx<<",",
cout<<ob.stry<<endl;
}
int main{
{
X a (10, "stringX");
Y b (20, "stringY");
a. show (b);
renurn 0;
}
第5题:
对于下面的程序 #include<stdio.h> #include<string.h> char * scmp(char * s1,char * s2) { if(strcmp(s1,s2)<0)return(s1); else return(s2); } main() { int i;char string[20],str[3][20]; for(i=0;i<3;i++)gets(str[i]); strcpy(string,scmp(str[0],str[1])); strcpy(string,scmp(string,str[2])); printf("%s\n",string); } 若运行时依次输入abcd、abba和abc三个字符串,则输出结果为 ______。
A.abcd
B.abba
C.abc
D.abca
第6题:
对于下面的程序 #include<stdio.h> #include<string.h> char *scmp(char*s1,char*s2) { if(strcmp(s1,s2)<0)return(s1); else return(s2); } main() { int i:char string[20],sb[3][20]; for(i=0;i<3;i++)gets(str[i]); strcpy(string,scmp(str[0],str[1])); strcpy(string,scmp(string,str[21)); printf("%s\n",string); } 若运行时依次输入abcd、abba和abc三个字符串,则输出结果为______。
A.abcd
B.abba
C.abc
D.abca
第7题:
有以下程序:
include <iostream>
include <string>
using nameSpace std;
class person
{
int age;
Char * name;
public:
person ( int i, Char * str )
{
int j;
j = strlen( str ) + 1;
name = new char[ j ];
strcpy( name, str );
age = i;
}
~person()
{
delete name;
cout<<"D";
}
void display()
{
cout<<name<<":"<<age;
}
};
int main()
{
person demo( 30,"Smith" );
demo.display();
return 0;
}
则该程序的输出结果为:【 】。
第8题:
指出下列程序运行的结果public class Example{ String str=newString("good"); char[]ch={'a','b','c'}; public static voidmain(String args[]){ Example ex=new Example();ex.change(ex.str,ex.ch); System.out.print(ex.str+" and ");Sytem.out.print(ex.ch); } public void change(String str,charch[]){ str="test ok"; ch[0]='g'; } } ( )
AA good and abc
Bgood and gbc
Ctest ok and abc
Dtest ok and gbc
第9题:
从键盘上输入XXYYZZXYZWXP和X,以下程序的输出结果是【 】。
include<iostream.h>
include<string.h>
void main(){
char*str,ch;
int count=0,pos;
cin>>str>>ch;
pos=strlen(str)-1;
while(pos>=0){
if((str[pos])=ch)count++;
pos--;
}
cout<<"count="<<count;
}