printf examples

Issue: BAEL-2228

core-java/src/main/java/com/baeldung/printf/PrintfExamples.java

@@ -0,0 +1,61 @@
+package com.baeldung.printf;
+
+import java.util.Date;
+import java.util.Locale;
+
+public class PrintfExamples {
+
+    public static void main(String[] args) {
+
+        printfNewLine();
+        printfChar();
+        printfString();
+        printfNumber();
+        printfDateTime();
+        printfBoolean();
+    }
+
+    private static void printfNewLine() {
+        System.out.printf("baeldung%nline%nterminator");
+    }
+
+    private static void printfString() {
+        System.out.printf("'%s' %n", "baeldung");
+        System.out.printf("'%S' %n", "baeldung");
+        System.out.printf("'%15s' %n", "baeldung");
+        System.out.printf("'%-10s' %n", "baeldung");
+    }
+
+    private static void printfChar() {
+        System.out.printf("%c%n", 's');
+        System.out.printf("%C%n", 's');
+    }
+
+    private static void printfNumber() {
+        System.out.printf("simple integer: %d%n", 10000L);
+
+        System.out.printf(Locale.US, "%,d %n", 10000);
+        System.out.printf(Locale.ITALY, "%,d %n", 10000);
+
+        System.out.printf("%f%n", 5.1473);
+        System.out.printf("'%5.2f'%n", 5.1473);
+        System.out.printf("'%5.2e'%n", 5.1473);
+    }
+
+    private static void printfBoolean() {
+        System.out.printf("%b%n", null);
+        System.out.printf("%B%n", false);
+        System.out.printf("%B%n", 5.3);
+        System.out.printf("%b%n", "random text");
+    }
+
+    private static void printfDateTime() {
+        Date date = new Date();
+        System.out.printf("%tT%n", date);
+        System.out.printf("hours %tH: minutes %tM: seconds %tS%n", date, date, date);
+        System.out.printf("%1$tH:%1$tM:%1$tS %1$tp %1$tL %1$tN %1$tz %n", date);
+
+        System.out.printf("%1$tA %1$tB %1$tY %n", date);
+        System.out.printf("%1$td.%1$tm.%1$ty %n", date);
+    }
+}