java basic lesson #5

BerlinTelran/JavaBasic/JavaBasic5Lesson.java

@@ -0,0 +1,23 @@
+import java.util.Random;
+import java.util.Scanner;
+
+class JavaBasic5Lesson {
+    public static void main(String[] args) {
+        String str = new String("Hello,");
+        String strJava = " Java!";
+        String strResult = str.concat(strJava);
+        System.out.println(strResult);
+        System.out.println(strResult.contains("abc"));
+        System.out.println(strResult.indexOf("Java"));
+        System.out.println(str.equalsIgnoreCase("hello,"));
+        System.out.println(strResult.length());
+        System.out.println(strResult.substring(7, 11));
+        System.out.println(strResult.toUpperCase());
+        strResult += " Hi!";
+        System.out.println(strResult);
+        for (int i = 0; i < str.length(); i++) {
+            System.out.print(str.charAt(i) + "-");
+        }
+        System.out.println(Math.PI);
+    }
+}