Develop merge examples (#3851)

* Merge examples repo into library

* Change grepTest to be more fault-tolerant

* Update examples macro file

* Exclude all Fortran examples from doxygen

1 files changed, 225 insertions, 0 deletions

diff --git a/HDF5Examples/JAVA/H5T/H5Ex_T_Float.java b/HDF5Examples/JAVA/H5T/H5Ex_T_Float.java
new file mode 100644
index 0000000..e062588
--- /dev/null
+++ b/HDF5Examples/JAVA/H5T/H5Ex_T_Float.java
@@ -0,0 +1,225 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://www.hdfgroup.org/licenses.               *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/************************************************************
+  This example shows how to read and write integer datatypes
+  to a dataset.  The program first writes integers to a
+  dataset with a dataspace of DIM0xDIM1, then closes the
+  file.  Next, it reopens the file, reads back the data, and
+  outputs it to the screen.
+ ************************************************************/
+
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.util.Locale;
+
+import hdf.hdf5lib.H5;
+import hdf.hdf5lib.HDF5Constants;
+
+public class H5Ex_T_Float {
+    private static String FILENAME    = "H5Ex_T_Float.h5";
+    private static String DATASETNAME = "DS1";
+    private static final int DIM0     = 4;
+    private static final int DIM1     = 7;
+    private static final int RANK     = 2;
+
+    private static void CreateDataset()
+    {
+        long file_id         = HDF5Constants.H5I_INVALID_HID;
+        long dataspace_id    = HDF5Constants.H5I_INVALID_HID;
+        long dataset_id      = HDF5Constants.H5I_INVALID_HID;
+        long[] dims          = {DIM0, DIM1};
+        double[][] dset_data = new double[DIM0][DIM1];
+
+        // Initialize data.
+        for (int indx = 0; indx < DIM0; indx++)
+            for (int jndx = 0; jndx < DIM1; jndx++) {
+                dset_data[indx][jndx] = indx / (jndx + 0.5) + jndx;
+            }
+
+        // Create a new file using default properties.
+        try {
+            file_id = H5.H5Fcreate(FILENAME, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT,
+                                   HDF5Constants.H5P_DEFAULT);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Create dataspace. Setting maximum size to NULL sets the maximum
+        // size to be the current size.
+        try {
+            dataspace_id = H5.H5Screate_simple(RANK, dims, null);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Create the dataset and write the floating point data to it. In
+        // this example we will save the data as 64 bit little endian IEEE
+        // floating point numbers, regardless of the native type. The HDF5
+        // library automatically converts between different floating point
+        // types.
+        try {
+            if ((file_id >= 0) && (dataspace_id >= 0))
+                dataset_id = H5.H5Dcreate(file_id, DATASETNAME, HDF5Constants.H5T_IEEE_F64LE, dataspace_id,
+                                          HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT,
+                                          HDF5Constants.H5P_DEFAULT);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Write the data to the dataset.
+        try {
+            if (dataset_id >= 0)
+                H5.H5Dwrite(dataset_id, HDF5Constants.H5T_NATIVE_DOUBLE, HDF5Constants.H5S_ALL,
+                            HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // End access to the dataset and release resources used by it.
+        try {
+            if (dataset_id >= 0)
+                H5.H5Dclose(dataset_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Terminate access to the data space.
+        try {
+            if (dataspace_id >= 0)
+                H5.H5Sclose(dataspace_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Close the file.
+        try {
+            if (file_id >= 0)
+                H5.H5Fclose(file_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    private static void ReadDataset()
+    {
+        long file_id      = HDF5Constants.H5I_INVALID_HID;
+        long dataspace_id = HDF5Constants.H5I_INVALID_HID;
+        long dataset_id   = HDF5Constants.H5I_INVALID_HID;
+        long[] dims       = {DIM0, DIM1};
+        double[][] dset_data;
+
+        // Open an existing file.
+        try {
+            file_id = H5.H5Fopen(FILENAME, HDF5Constants.H5F_ACC_RDONLY, HDF5Constants.H5P_DEFAULT);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Open an existing dataset.
+        try {
+            if (file_id >= 0)
+                dataset_id = H5.H5Dopen(file_id, DATASETNAME, HDF5Constants.H5P_DEFAULT);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Get dataspace and allocate memory for read buffer.
+        try {
+            if (dataset_id >= 0)
+                dataspace_id = H5.H5Dget_space(dataset_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        try {
+            if (dataspace_id >= 0)
+                H5.H5Sget_simple_extent_dims(dataspace_id, dims, null);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Allocate array of pointers to two-dimensional arrays (the
+        // elements of the dataset.
+        dset_data = new double[(int)dims[0]][(int)(dims[1])];
+
+        // Read data.
+        try {
+            if (dataset_id >= 0)
+                H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_DOUBLE, HDF5Constants.H5S_ALL,
+                           HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Output the data to the screen.
+        DecimalFormat df = new DecimalFormat("#,##0.0000", new DecimalFormatSymbols(Locale.US));
+        System.out.println(DATASETNAME + ":");
+        for (int indx = 0; indx < dims[0]; indx++) {
+            System.out.print(" [");
+            for (int jndx = 0; jndx < dims[1]; jndx++) {
+                System.out.print(" " + df.format(dset_data[indx][jndx]));
+            }
+            System.out.println("]");
+        }
+        System.out.println();
+
+        // End access to the dataset and release resources used by it.
+        try {
+            if (dataset_id >= 0)
+                H5.H5Dclose(dataset_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Terminate access to the data space.
+        try {
+            if (dataspace_id >= 0)
+                H5.H5Sclose(dataspace_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // Close the file.
+        try {
+            if (file_id >= 0)
+                H5.H5Fclose(file_id);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void main(String[] args)
+    {
+        H5Ex_T_Float.CreateDataset();
+        // Now we begin the read section of this example. Here we assume
+        // the dataset and array have the same name and rank, but can have
+        // any size. Therefore we must allocate a new array to read in
+        // data using malloc().
+        H5Ex_T_Float.ReadDataset();
+    }
+}