Question

用java编写一个类，该类创建的对象可以输出英文字母表

Answer 1

public class BB {

public BB(boolean isUppperCase){
char start = isUppperCase? 'A':'a';
char end = isUppperCase? 'Z':'z';

while(start <= end){
System.out.print(start);
start++;
}

System.out.println();
}

public BB(){
this(false);
}

public static void main(String[] args) {
new BB();//默认输出小写字目标
System.out.println();
new BB(true);//大写就传参数true

}

}
-----------testing
abcdefghijklmnopqrstuvwxyz

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Answer 2

下面的方法也是差不多的 ，就是根据创建类的对象，然后调用方法f输出英文字母
public class Text{
public void f()
{
int i ;
for (i=65 ;i<123; i++)

if(i<91)
{
System.out.print((char) i +" ");
}
else if(i==91)
{
System.out.println();

}
else if(i>96)
{

System.out.print((char) i +" ");
}

}

public static void main(String[] args) {

Text m=new Text();
m.f();

}
}

Answer 3

class Computer{
public void word(){
int b;
for(b=65;b<91;b++){
System.out.print((char)b);
System.out.print(" ");
}
}
}
public class Word{
public static void main(String args[]){
Computer a=new Computer();
a.word();
}
}

Answer 4

public class PrintLetter
{
public static void main(String[] args)
{
int cnt=1;
for(char ch='a';ch<='z';)
{
for(int j=0;j<cnt;j++)
{
if(ch<='z')
System.out.print(ch);
ch++;
}
System.out.println();
cnt++;
}
}
}

Answer 5

public class English {

public English()

{
int i ;
for (i=65 ;i<123; i++)

if(i<91)
{
System.out.print((char) i +" ");
}
else if(i==91)
{
System.out.println();

}
else if(i>96)
{

System.out.print((char) i +" ");
}

}

public static void main(String[] args) {

new English();

}
}

输出结果：
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z