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Java Programming for absolute beginner- P24:Hello and welcome to Java Programming for the Absolute Beginner. You probably already have a good understanding of how to use your computer. These days it’s hard to find someone who doesn’t, given the importance of computers in today’s world. Learning to control your computer intimately is what will separate you from the pack! By reading this book, you learn how to accomplish just that through the magic of programming. | JavaProgAbsBeg-11.qxd 2 25 03 8 57 AM Page 418 Java Programming for the Absolute Beginner character at a time using the reader.read method. If the end of the file EOF is reached this method returns -1. So the while loop checks for this as its condition. Although each character read in is not -1 write that character to the writer buffer anyway. Invoking the writer.close causes the buffer to be cleared written to the file and closed. Figure 11.6 shows one run of the FileCopy application. FIGURE 11.6 The FileCopy application copied the file1.txt file and saved the copy as copy.txt. Don t forget to call the close method on the BufferedWriter. If you don t you won t get any actual output. There is also a method called flush which flushes the buffer and writes it out to the file but calling close actually flushes the buffer before closing anyway. Keeping Score The ScoreInfoPanel class keeps score basically by keeping track of three integers scoreValue keeps track of the current score hiValue keeps track of the high score and nLinesValue keeps track of the number of lines cleared. The ScoreInfoPanel class also provides methods for modifying these values such as setScore int setHiScore int and setLines int for setting these values to the given int value. It also provides addToScore int and addToLines int team Line - live informative Nan-cast and Genuine Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. JavaProgAbsBeg-11.qxd 2 25 03 8 57 AM Page 419 419 methods for adding the given int value to these values. Here is the source code for ScoreInfoPanel.java ScoreInfoPanel A Panel that shows the scoring info for a BlockGame and shows the next block. import java.awt. import java.io. import java.text.NumberFormat public class ScoreInfoPanel extends Panel protected Label scoreLabel new Label Score linesLabel new Label Lines score new Label hiLabel new Label lines new Label nextLabel new Label Next Block Label.CENTER protected int scoreValue 0 hiValue 0
