Java程序可完整打印姓氏的名字的缩写
提供全名时，将打印姓名的首字母，并打印全名。一个例子如下：
Full name = Amy Thomas Initials with surname is = A. Thomas
演示此的程序如下所示-
示例
import java.util.*;
public class Example {
public static void main(String[] args) {
String name = "John Matthew Adams";
System.out.println("The full name is: " + name);
System.out.print("Initials with surname is: ");
int len = name.length();
name = name.trim();
String str1 = "";
for (int i = 0; i < len; i++) {
char ch = name.charAt(i);
if (ch != ' ') {
str1 = str1 + ch;
} else {
System.out.print(Character.toUpperCase(str1.charAt(0)) + ". ");
str1 = "";
}
}
String str2 = "";
for (int j = 0; j < str1.length(); j++) {
if (j == 0)
str2 = str2 + Character.toUpperCase(str1.charAt(0));
else
str2 = str2 + Character.toLowerCase(str1.charAt(j));
}
System.out.println(str2);
}
}输出结果
The full name is: John Matthew Adams Initials with surname is: J. M. Adams
现在让我们了解上面的程序。
名称已打印。然后，将打印名称的第一个字母，即首字母缩写。证明这一点的代码片段如下所示-
String name = "John Matthew Adams";
System.out.println("The full name is: " + name);
System.out.print("Initials with surname is: ");
int len = name.length();
name = name.trim();
String str1 = "";
for (int i = 0; i < len; i++) {
char ch = name.charAt(i);
if (ch != ' ') {
str1 = str1 + ch;
} else {
System.out.print(Character.toUpperCase(str1.charAt(0)) + ". ");
str1 = "";
}
}然后，打印名称的整个姓氏。证明这一点的代码片段如下所示-
String str2 = "";
for (int j = 0; j < str1.length(); j++) {
if (j == 0)
str2 = str2 + Character.toUpperCase(str1.charAt(0));
else
str2 = str2 + Character.toLowerCase(str1.charAt(j));
}
System.out.println(str2);