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Output a % character

Because a % sign always indicates the start of a format specifier, you must use "%%" in the format string when you want to output a % character. public class MainClass {   public static void main(String[] a) {     int percentage = 75;     System.out.printf("\n%1$d%%", percentage);     String str = "The quick brown fox.";     System.out.printf("%nThe string is:%n%s%n%1$25s", str);   } } 75% The string is: The quick brown fox. The quick brown fox.