Work with String Formatting
parent
9b07f2a014
commit
558abeeb60
@ -0,0 +1,126 @@
|
||||
package string.formatting;
|
||||
|
||||
import java.io.BufferedWriter;
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Paths;
|
||||
import java.util.Formatter;
|
||||
import java.util.StringJoiner;
|
||||
|
||||
public class Main {
|
||||
private static final String rootResources = "C:\\Users\\sgoud\\JavaProjects\\Learning-Java\\Pluralsite\\src\\intermediate\\Java Fundamentals - The Core Platform\\resources\\";
|
||||
|
||||
public static void main(String[] args) throws IOException {
|
||||
stringJoiner();
|
||||
System.out.println();
|
||||
stringJoinerEmptyCase();
|
||||
System.out.println();
|
||||
formattingStrings();
|
||||
|
||||
writeFormattedContentToFile();
|
||||
}
|
||||
|
||||
private static void stringJoiner() {
|
||||
StringJoiner stringJoiner = new StringJoiner(", ");
|
||||
stringJoiner.add("alpha");
|
||||
stringJoiner.add("beta");
|
||||
stringJoiner.add("gamma");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ");
|
||||
stringJoiner.add("alpha").add("beta").add("gamma");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ", "{", "}");
|
||||
stringJoiner.add("alpha").add("beta").add("gamma");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner("], [", "[", "]");
|
||||
stringJoiner.add("alpha").add("beta").add("gamma");
|
||||
System.out.println(stringJoiner.toString());
|
||||
}
|
||||
|
||||
private static void stringJoinerEmptyCase() {
|
||||
StringJoiner stringJoiner = new StringJoiner(", ");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ", "{", "}");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ");
|
||||
stringJoiner.setEmptyValue("EMPTY");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ", "{", "}");
|
||||
stringJoiner.setEmptyValue("EMPTY");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ");
|
||||
stringJoiner.setEmptyValue("EMPTY");
|
||||
stringJoiner.add("");
|
||||
System.out.println(stringJoiner.toString());
|
||||
|
||||
stringJoiner = new StringJoiner(", ", "{", "}");
|
||||
stringJoiner.setEmptyValue("EMPTY");
|
||||
stringJoiner.add("");
|
||||
System.out.println(stringJoiner.toString());
|
||||
}
|
||||
|
||||
private static void formattingStrings() {
|
||||
int david = 13;
|
||||
int dawson = 11;
|
||||
int dillon = 4;
|
||||
int gordon = 2;
|
||||
|
||||
String formattedString = String.format("My nephews are %d, %d, %d and %d years old", david, dawson, dillon, gordon);
|
||||
System.out.println(formattedString);
|
||||
|
||||
System.out.printf("W:%d X:%d\n", 5, 235);
|
||||
System.out.printf("Y:%d Z:%d\n", 481, 12);
|
||||
|
||||
System.out.println();
|
||||
|
||||
System.out.printf("W:%4d X:%4d\n", 5, 235);
|
||||
System.out.printf("Y:%4d Z:%4d\n", 481, 12);
|
||||
|
||||
System.out.println();
|
||||
|
||||
System.out.printf("W:%04d X:%04d\n", 5, 235);
|
||||
System.out.printf("Y:%04d Z:%04d\n", 481, 12);
|
||||
|
||||
System.out.println();
|
||||
|
||||
System.out.printf("W:%-4d X:%-4d\n", 5, 235);
|
||||
System.out.printf("Y:%-4d Z:%-4d\n", 481, 12);
|
||||
|
||||
System.out.println();
|
||||
|
||||
System.out.printf("%d\n", 1234567);
|
||||
System.out.printf("%,d\n", 1234567);
|
||||
System.out.printf("%,.2f\n", 1234567.0);
|
||||
|
||||
System.out.println();
|
||||
|
||||
System.out.printf("%d\n", 123);
|
||||
System.out.printf("%d\n", -456);
|
||||
System.out.printf("% d\n", 123);
|
||||
System.out.printf("% d\n", -456);
|
||||
System.out.printf("%+d\n", 123);
|
||||
System.out.printf("%+d\n", -456);
|
||||
System.out.printf("%(d\n", 123);
|
||||
System.out.printf("%(d\n", -456);
|
||||
System.out.printf("% (d\n", 123);
|
||||
}
|
||||
|
||||
private static void writeFormattedContentToFile() throws IOException {
|
||||
int david = 13;
|
||||
int dawson = 11;
|
||||
int dillon = 4;
|
||||
int gordon = 2;
|
||||
BufferedWriter writer = Files.newBufferedWriter(Paths.get(rootResources + "myFormattedFile.txt"));
|
||||
|
||||
try (Formatter formatter = new Formatter(writer)) {
|
||||
formatter.format("My nephews are %d, %d, %d and %d years old", david, dawson, dillon, gordon);
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue