Day 1 break 2

Questions.txt

@@ -37,4 +37,65 @@ D) void doStuff() {
 
 E) void doStuff() {
      var x = { 1, 2, 3 };
-   }
+   }
+
+Q) Given:
+var x = true ? "99" : 99;
+
+What is the type of x?
+A) none, it's fails to compile
+B) int
+C) String
+D) Object
+E) none of the above
+
+Q) Given:
+
+     public static void main(String[] args) {
+       final StringBuilder sb = new StringBuilder("Hello");
+       sb.append(" world!");
+       System.out.println(sb);
+     }
+
+   What is the result?
+   A) Compilation fails
+   B) Hello
+   C) Hello world!
+   D) Exception at runtime
+
+Q) Given:
+
+String message = """Hello\
+Java 17 World!""";
+System.out.println(message + "XXX");
+
+What is the result?
+A) Compilation fails
+B) Exception at runtime
+C) Hello
+   Java 17 World!XXX
+D) Hello Java 17 World!XXX
+E) Hello Java 17 World!
+   XXX
+
+Q) Given:
+    String message = """
+        Hello
+            Java 17 World!""";
+    System.out.println(message + "XXX");
+
+What is the result?
+A)
+Hello
+Java 17 World!XXX
+B)
+Hello
+    Java 17 World!XXX
+C)
+Hello
+Java 17 World!
+XXX
+D)
+    Hello
+        Java 17 World!
+XXX

src/main/java/textblock/Ex1.java

@@ -0,0 +1,18 @@
+package textblock;
+
+public class Ex1 {
+  public static void main(String[] args) {
+    String message = """
+Hello\
+Java 17 World!""";
+    System.out.println("XXX" + message + "XXX");
+
+    System.out.println("------------");
+    String message2 = """
+            ""\"""\"""Hello", he said
+       Java 17 World!
+       """;
+    System.out.println(message2 + "XXX");
+
+  }
+}

src/main/java/usingvar/Ex1.java

@@ -31,6 +31,18 @@ public static void main(String[] args) throws Throwable {
 //    try (FileReader in = new FileReader("")) {
 //    } catch (var ex) { }
 
+
+// nope, can't change base type during autoboxing
+//    Long i = 2_000_000_000;
+
+    var x = true ? "99" : 99;
+
+//    Integer in = null; // also for String :)
+//    in.compareTo... and others
+
+//    int goto;
+//    var var = "var";
+    int var = 99;
   }
 
 //  void doStuff() {
@@ -46,3 +58,5 @@ public static void main(String[] args) throws Throwable {
 //    showStuff(new String[]{"a", "b"});
 //  }
 }
+
+//class var {}