Prepare ntcore for merge into allwpilib.

ntcore/manualTests/java/Client.java

@@ -0,0 +1,46 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2017-2018. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+import edu.wpi.first.wpilibj.networktables.*;
+import edu.wpi.first.wpilibj.tables.*;
+
+public class Client {
+  private static class MyLogger implements NetworkTablesJNI.LoggerFunction {
+    public void apply(int level, String file, int line, String msg) {
+      System.err.println(msg);
+    }
+  }
+
+  public static void main(String[] args) {
+    NetworkTablesJNI.setLogger(new MyLogger(), 0);
+    NetworkTable.setIPAddress("127.0.0.1");
+    NetworkTable.setPort(10000);
+    NetworkTable.setClientMode();
+    NetworkTable nt = NetworkTable.getTable("");
+    try { Thread.sleep(2000); } catch (InterruptedException e) {}
+    try {
+      System.out.println("Got foo: " + nt.getNumber("foo"));
+    } catch(TableKeyNotDefinedException ex) {
+    }
+    nt.putBoolean("bar", false);
+    nt.setFlags("bar", NetworkTable.PERSISTENT);
+    nt.putBoolean("bar2", true);
+    nt.putBoolean("bar2", false);
+    nt.putBoolean("bar2", true);
+    nt.putString("str", "hello world");
+    double[] nums = new double[3];
+    nums[0] = 0.5;
+    nums[1] = 1.2;
+    nums[2] = 3.0;
+    nt.putNumberArray("numarray", nums);
+    String[] strs = new String[2];
+    strs[0] = "Hello";
+    strs[1] = "World";
+    nt.putStringArray("strarray", strs);
+    try { Thread.sleep(10000); } catch (InterruptedException e) {}
+  }
+}