intermediate/StringOps

01 packagepackage is used to name the directory or folder a class is in intermediate;
02 
03 
04 /**
05  * All about my application.
06  * @authornull My Name Here
07  */
08 publicpublic is used to indicate unrestricted access (any other class can have access) classclass is a group of fields and methods used for making objects StringOps
09 {open braces start code blocks and must be matched with a close brace
10   publicpublic is used to indicate unrestricted access (any other class can have access) staticstatic means that an instance is not required for access (class level access) voidvoid means the method does not return a value mainThe main method is the place where applications begin executing.(String[brackets are typically used to declare, initialize and index (indicate which element of) arrays]brackets are typically used to declare, initialize and index (indicate which element of) arrays args)
11   {open braces start code blocks and must be matched with a close brace
12     String message=this assignment operator makes the left side equal to the right side"Hello World!";
13     System.out.println("the length of "+adds two numbers together or concatenates Strings togethermessage+adds two numbers together or concatenates Strings together" is "+adds two numbers together or concatenates Strings together
14                        message.length());
15     System.out.println("from 1 to 6 excluding 6 is "+adds two numbers together or concatenates Strings together
16                        message.substring(1, 6));
17     doubledouble is the type for numbers that can contain decimal fractions x=this assignment operator makes the left side equal to the right side1/3.0;
18     x++this is the increment operator, which increases the variable by 1;
19     x--this is the decrement operator, which decreases the variable by 1;
20     intint is the type for whole numbers and it is short for integer m=this assignment operator makes the left side equal to the right side84%this divides the left side by the right side and evaluates to the remainder3;
21     message+=this increases the variable on the left by the value on the rightx;//shorthand for message=message+x;
22     System.out.println(message);
23     System.out.println(m);
24   }close braces end code blocks and must match an earlier open brace
25 }close braces end code blocks and must match an earlier open brace