将二进制数10101转换为十进制数,正确的转换方法是( )。
选项:
A:
oct(10101)
B:
int(0b10101)
C:
int('0b10101')
D:
bin(10101)
oct(10101)
int(0b10101)
int('0b10101')
bin(10101)
以下文字与答案无关
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二进制数 011111 转换为十进制整数是______。
选项: A:64
B:63
C:32
D:31
1111001
B:01101111
C:01101110
D:011100001
1000000001
B:1100000001
C:1100000011
D:1100010001
int(x ,base])
B:long(x ,base] )
C:float(x)
D:str(x)
146
B:166
C:16E
D:18E
int *p=new int(10);
B:int *p=new int10];
C:int *p=new int;
D:int *p=new int40](0);
}
}
">8.(4)interface Com {
int add(int a, int b);
public static int get(int n){
return n;
}
public default int see(int n){
return n;
}
public default int look(int n){
return n;
}
}
class A implements Com{
public int add(int a, int b){
return a+b;
}
public int see(int n){
return n+1;
}
}
public class E {
public static void main(String args]){
A a = new A();
int m = a.add(12,6);
int n =Com.get(12);
int t = a.see(6);
int q = a.look(6);
System.out.printf("%d:%d:%d:%d",m,n,t,q);
}
}
}
}
">9.interface Com {int add(int a, int b);
public static int get(int n){
return n;
}
public default int see(int n){
return n;
}
public default int look(int n){
return n;
}
}
class A implements Com{
public int add(int a, int b){
return a+b;
}
public int see(int n){
return n+1;
}
}
public class E {
public static void main(String args]){
A a = new A();
int m = a.add(12,6);
int n =Com.get(12);
int t = a.see(6);
int q = a.look(6);
System.out.printf("%d:%d:%d:%d",m,n,t,q);
}
}
}
}
">11.请说出下面中【代码】的输出结果
interface Com {
int add(int a,int b);
public static int get(int n){
return n;
}
public default int see(int n){
return n;
}
public default int look(int n){
return n;
}
}
class A implements Com{
public int add(int a,int b) {
return a+b;
}
public int see(int n){
return n+1;
}
}
public class Main {
public static void main(String args]) {
A a = new A();
int m = a.add(12,6);
int n =Com.get(12);
int t = a.see(6);
int q = a.look(6);
System.out.printf("%d:%d:%d:%d",m,n,t,q); //【代码】
}
}
Double d=84.54;
D++;
Int c=d/2;
选项: A:42
B:编译错误,更改为int c=(int)d/2;
C:43
D:编译错误,更改为int c=int(d)/2;
return 0;
}
">18.以下程序输出的结果是( )
#include <stdio.h>
int func(int a, int b) {
return (a + b);
}
int main() {
int x = 2, y = 5, z = 8, r;
r = func(func(x, y), z);
printf("%d\n", r);
return 0;
}
public void methodTwo(int i){}
C:public static void methodTree(int i, int j){}
D:blic static void methodFour(int i){}
">19.以下哪个方法不可以加入类 Son? ( )
class Father{
public void methodOne(int i){}
public void methodTwo(int i){}
public static void methodTree(int i){}
public static void methodFour(int i){}
}
class Son extends Father{…}
选项: A:public static void methodOne(int i){}
B:public void methodTwo(int i){}
C:public static void methodTree(int i, int j){}
D:blic static void methodFour(int i){}
255
B:25
C:128
D:127