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Java 3_Operators and Switch stat

Java 3_Operators and Switch stat

作者: 綿綿_ | 来源:发表于2018-09-02 15:08 被阅读0次

    Relational operators

              /* 
             * > : Greater Than
             * < : Less Than
             * == : Equal To
             * != : Not Equal To
             * >= : Greater Than Or Equal To
             * <= : Less Than Or Equal To
             */
    

    Logical operators

             /* 
             * ! : Converts the boolean value to its right to its opposite form ie. true to false
             * & : Returns true if boolean value on the right and left are both true (Always evaluates both boolean values)
             * && : Returns true if boolean value on the right and left are both true (Stops evaluating after first false)
             * | : Returns true if either boolean value on the right or left are true (Always evaluates both boolean values)
             * || : Returns true if either boolean value on the right or left are true (Stops evaluating after first true)
             * ^ : Returns true if there is 1 true and 1 false boolean value on the right or left
             */
    

    Switch statement

    char theGrade = 'B';
            /* 
             * default code is executed if there are no matches
             * You are not required to use the break or default statements
             * The expression must be an int, short, byte, or char
             */
            switch (theGrade)
            {
            case 'A':
                System.out.println("Great Job");
                break; // Ends the switch statement
            case 'B':
                System.out.println("Good Job, get an A next time");
                break;
            case 'C':
                System.out.println("OK, but you can do better");
                break;
            default:
                System.out.println("You failed");
                break;
            }
    

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