Have you watched an English movie? Of course! Have you noticed the caption of end which tells us which role is played by whom? Maybe not. I have seen many English movies and some of them are very famous as they are awarded the Oscar award. I found an interesting thing, that is the more success or say famous of the movie, the longer time will for caption. I knew that people always care about the content only. I am too. But if you watch the last some seemed tedious part, you will find something interesting.
What I say interesting is the format of the captions. See the list below. The “The Cast” is in the center/middle, the second is centered too. The role list is aligned to the right, and the actor list is aligned to the left, with a little bit width between them. All seems simple. but not at all. Just image one of the role's or actor's name is very long, then how to print thing like this? You may say that print it in another line with the rule that role name aligned to the right, actor name aligned to the left. That’s right. Actually, what we see from the movie is just the same like that. But how to break the line? I mean, the name is very long, and you want to print with another line, how to break the name? from which word? Which character? That's the problem!
The Cast
(in order of appearance)
Wladyslaw Sapilman ADRIEN BRODY
Dorota EMILIA FOX
Jurek MICHAL ZEBROWSKI
Henryk ED STOPPARD
Mother MAUREEN LIPMAN
How to print something like this in our program? Here, is a example provided.
Java Code:
package noi;
import java.util.StringTokenizer;
import java.util.Vector;
public class BeautifulPrint {
public static final int SCREENWIDTH = 80;
public static final int ALIGN_LEFT = 1;
public static final int ALIGN_CENTER = 2;
public static final int ALIGN_RIGHT = 3;
public void print(String str) {
System.out.print(str);
}
public void println(String str) {
System.out.println(str);
}
public void println() {
System.out.println();
}
public void multiPrint(String str, int times) {
for (int i = 0; i < times; i++) {
print(str);
}
}
public void simplePrint(String str, int width, int align) {
int spaces = 0;
if (align == BeautifulPrint.ALIGN_LEFT) {
spaces = 0;
} else if(align == BeautifulPrint.ALIGN_CENTER) {
spaces = (width - str.length()) / 2;
} else {
spaces = width - str.length();
}
multiPrint(" ", spaces);
print(str);
}
public void formatPrint(String str, int width, int align) {
StringTokenizer st = new StringTokenizer(str, " ");
Vector wordVector = new Vector();
while(st.hasMoreTokens()) {
wordVector.addElement(st.nextToken());
}
int len = 0;
int length = 0;
int i = 0;
String outStr = "";
while (true) {
len = outStr.length();
String strTemp = (String)wordVector.get(i);
length = strTemp.length();
if (len + length > width) {
if(len == 0) {
outStr += strTemp.substring(0, length + len - width);
wordVector.set(i, strTemp.substring(length + len - width, length));
}
multiPrint(" ",(BeautifulPrint.SCREENWIDTH - width)/2);
simplePrint(outStr, width, align);
print("/n");
outStr = "";
continue;
} else {
outStr += strTemp + " ";
i++;
if(i == wordVector.size()) {
multiPrint(" ",(BeautifulPrint.SCREENWIDTH - width)/2);
simplePrint(outStr, width, align);
print("/n");
outStr = "";
break;
}
}
}
}
public String getMultiString(String str, int times) {
String result = "";
for (int i = 0; i < times; i++) {
result += str;
}
return result;
}
/**
* to print two-column strings
* @param lstr string at the left part
* @param rstr string at the right part
* @param lWidth the width of left string
* @param rWidth the width of right string
* @param mWidth the width between left and right string
*/
public void advancedFormatPrint(String lstr, String rstr, int lWidth, int rWidth, int mWidth) {
StringTokenizer lst = new StringTokenizer(lstr, " ");
Vector lWordVector = new Vector();
while(lst.hasMoreTokens()) {
lWordVector.addElement(lst.nextToken());
}
StringTokenizer rst = new StringTokenizer(rstr, " ");
Vector rWordVector = new Vector();
while(rst.hasMoreTokens()) {
rWordVector.addElement(rst.nextToken());
}
int len = 0;
int length = 0; // length of each word
int i = 0;
String outStr = "";
Vector lStrVector = new Vector();
// process left word vector first
while (true) {
len = outStr.length();
String strTemp = (String)lWordVector.get(i);
length = strTemp.length();
if (len + length > lWidth) {
if(len == 0) {
outStr += strTemp.substring(0, length + len - lWidth);
lWordVector.set(i, strTemp.substring(length + len - lWidth, length));
}
outStr = getMultiString(" ", lWidth - outStr.length() + (BeautifulPrint.SCREENWIDTH - lWidth - rWidth - mWidth)/2) + outStr;
lStrVector.add(outStr);
outStr = "";
continue;
} else {
outStr += strTemp + " ";
i++;
if(i == lWordVector.size()) {
outStr = getMultiString(" ", lWidth - outStr.length() + (BeautifulPrint.SCREENWIDTH - lWidth - rWidth - mWidth)/2) + outStr;
lStrVector.add(outStr);
outStr = "";
break;
}
}
}
// process right word list
i = 0;
outStr = "";
Vector rStrVector = new Vector();
while (true) {
len = outStr.length();
String strTemp = (String)rWordVector.get(i);
length = strTemp.length();
if (len + length > rWidth) {
if(len == 0) {
outStr += strTemp.substring(0, length + len - rWidth);
lWordVector.set(i, strTemp.substring(length + len - rWidth, length));
}
rStrVector.add(outStr);
outStr = "";
continue;
} else {
outStr += strTemp + " ";
i++;
if(i == rWordVector.size()) {
rStrVector.add(outStr);
outStr = "";
break;
}
}
}
// process the two strVector togother
int min = Math.min(lStrVector.size(), rStrVector.size());
for (i = 0; i < min; i++) {
outStr = (String)lStrVector.get(i) + getMultiString(" ", mWidth) + (String)rStrVector.get(i);
println(outStr);
}
for (; i < lStrVector.size(); i++) {
outStr = (String)lStrVector.get(i);
println(outStr);
}
for(; i < rStrVector.size(); i++) {
outStr = getMultiString(" ", lWidth + mWidth)+(String)rStrVector.get(i);
println(outStr);
}
}
/**
* @param args
*/
public static void main(String[] args) {
BeautifulPrint bp = new BeautifulPrint();
String str = "Chinese Provinces and Citys List";
bp.formatPrint(str, 25, BeautifulPrint.ALIGN_CENTER);
String[] citys = {"Acheng", "Amoy [Xiamen]", "Anda", "Ankang",
"Anqing", "Anshan", "Anshun", "Anyang", "Aqsu",
"Baicheng", "Baiyin", "Baoding", "Baoji",
"Baotou", "Beihai", "Beipiao", "Bei??an",
"Bengbu", "Benxi", "Binzhou" };
String[] provinces = {"Heilongjiang", "Fujian", "Heilongjiang",
"Shaanxi", "Anhui", "Liaoning", "Guizhou", "Henan",
"Xinxiang", "Jilin", "Gansu", "Hebei", "Shaanxi",
"Inner Mongolia", "Guangxi", "Liaoning", "Heilongjiang",
"Anhui", "Liaoning", "Shandong" };
String cast = "The Cast";
String order = "(in order of appearance)";
String[] roles = {"Wladyslaw Sapilman", "Dorota", "Jurek", "Henryk", "Mother"};
String[] actors = {"ADRIEN BRODY","EMILIA FOX","MICHAL ZEBROWSKI","ED STOPPARD","MAUREEN LIPMAN"};
bp.formatPrint(cast, 25, BeautifulPrint.ALIGN_CENTER);
bp.formatPrint(order, 25, BeautifulPrint.ALIGN_CENTER);
for (int i = 0; i < roles.length; i++) {
bp.advancedFormatPrint(roles[i], actors[i], 20, 20, 6);
}
}
}