Java – How to write page headers when using iText library in java

itextjava

I am developing a report generation application that could have tabular data across multiple pages. I am using pdfTable to create tabular data. I am issues with adding page headers. The problem is that when I add page header onEndPage event handler, I am not get the table to start after certain gap so that header is visible.

Best Solution

If you are using tables (PDFPTable) for your layout then you can use: table.setHeaderRows(2);

JavaDoc Link : http://api.itextpdf.com/com/itextpdf/text/pdf/PdfPTable.html

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Java – How to efficiently iterate over each entry in a Java Map

Map<String, String> map = ...
for (Map.Entry<String, String> entry : map.entrySet()) {
    System.out.println(entry.getKey() + "/" + entry.getValue());
}

On Java 10+:

for (var entry : map.entrySet()) {
    System.out.println(entry.getKey() + "/" + entry.getValue());
}

Java – How to call one constructor from another in Java

Yes, it is possible:

public class Foo {
    private int x;

    public Foo() {
        this(1);
    }

    public Foo(int x) {
        this.x = x;
    }
}

To chain to a particular superclass constructor instead of one in the same class, use super instead of this. Note that you can only chain to one constructor, and it has to be the first statement in your constructor body.

See also this related question, which is about C# but where the same principles apply.

Best Solution

Related Solutions

Java – How to efficiently iterate over each entry in a Java Map

Java – How to call one constructor from another in Java

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