Examples of java.io.PrintWriter.printf()

java.io.PrintWriter.printf()
Prints a formatted string. The behavior of this method is the same as this writer's format(String format, Object... args) method.
The method uses the default for the current JVM instance locale, as if it is specified by the Locale.getDefault() call. @param format A format string. @param args The arguments list. If there are more arguments than those specified by the format string, then the additional arguments are ignored. @return This writer. @throws IllegalFormatException If the format string is illegal or incompatible with the arguments or the arguments are less than those required by the format string or any other illegal situation. @throws NullPointerException If the given format is null.


        // Then write the results to disk
        PrintWriter pw = new PrintWriter(options.getPositionalArg(0));
        for (Map.Entry<String,Integer> entry 
                 : counter.tokenToCount.entrySet())
            pw.printf("%s %d\n", entry.getKey(), entry.getValue());
        pw.close();
    }
}

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            sOutput.deleteOnExit();
            vOutput.deleteOnExit();


            // Print the customized Octave program to a file.
            PrintWriter pw = new PrintWriter(octaveFile);
            pw.printf(
                "Z = load('%s','-ascii');\n" +
                "A = spconvert(Z);\n" + 
                "clear Z;\n" + 
                "[U, S, V] = svds(A, %d);\n" +
                "save(\"-ascii\", \"%s\", \"U\");\n" +

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        pw.println("graph g {");
        String vertexLabel = null;
        for (int v : g.vertices()) {
            pw.print("\t" + v);
            if (vertexLabels != null && (vertexLabel = vertexLabels.get(v)) != null) {
                pw.printf(" [label=%s]", vertexLabel);
            }
            pw.println(';');
        }
        for (TypedEdge<T> e : g.edges()) {
            pw.printf("\t%d -- %d [label=\"%s\"]\n", e.from(), e.to(), e.edgeType());

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                pw.printf(" [label=%s]", vertexLabel);
            }
            pw.println(';');
        }
        for (TypedEdge<T> e : g.edges()) {
            pw.printf("\t%d -- %d [label=\"%s\"]\n", e.from(), e.to(), e.edgeType());
        }
        pw.println("}");
        pw.close();
    }

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        for (int v : g.vertices()) 
            pw.println("  " + v + ";");
        pw.println();
        // Write the edges that connect the vertices
        for (E e : g.edges()) 
            pw.printf("  %d -- %d;%n", e.from(), e.to());
        
        pw.println("}");
        pw.close();
    }

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                pw.println("  " + v + " [label=\"" + label + "\"];");
        }
        pw.println();
        // Write the edges that connect the vertices
        for (E e : g.edges()) 
            pw.printf("  %d -- %d;%n", e.from(),
                      e.to());
        
        pw.println("}");
        pw.close();
    }

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        for (int v : g.vertices()) 
            pw.println("  " + v + ";");
        pw.println();
        // Write the edges that connect the vertices
        for (E e : g.edges()) 
            pw.printf("  %d -> %d;%n", e.from(), e.to());
        
        pw.println("}");
        pw.close();
    }

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                c = cg.next();
                edgeColors.put(e.edgeType(), c);
            }
            String hexColor = Integer.toHexString(c.getRGB());
            hexColor = hexColor.substring(2, hexColor.length());
             pw.printf("  %d -- %d [label=\"%s\", color=\"#%s\"]%n", e.from(), e.to(),
                       e.edgeType(), hexColor);                       
//              pw.printf("  %d -- %d [style=\"setlinewidth(4)\", color=\"#%s\"]%n", e.from(), e.to(),
//                        hexColor);

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                c = cg.next();
                edgeColors.put(e.edgeType(), c);
            }
            String hexColor = Integer.toHexString(c.getRGB());
            hexColor = hexColor.substring(2, hexColor.length());
             pw.printf("  %d -- %d [label=\"%s\", color=\"#%s\"]%n", e.from(), e.to(),
                       e.edgeType(), hexColor);                       
//              pw.printf("  %d -- %d [style=\"setlinewidth(4)\", color=\"#%s\"]%n", e.from(), e.to(),
//                        hexColor);

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        }
        for (E e : g.edges()) {
            String hexColor = Integer.toHexString(
                edgeColors.get(e.edgeType()).getRGB());            
            hexColor = hexColor.substring(2, hexColor.length());
            pw.printf("  %d -> %d [label=\"%s\", color=\"#%s\"]%n", e.from(), e.to(),
                      e.edgeType(), hexColor);
        }
        pw.println("}");
        pw.close();
    }

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