Java Tutorial/JSP/Operators
Содержание
Addition and Subtraction
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<HEAD> <TITLE>Addition and Subtraction</TITLE> </HEAD> <BODY>
Addition and Subtraction
<% int operand1 = 15, operand2 = 24, sum, difference; sum = operand1 + operand2; difference = operand1 - operand2; out.println(operand1 + " + " + operand2 + " = " + sum + "
"); out.println(operand1 + " - " + operand2 + " = " + difference); %> </BODY>
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Checking Operator Precedence
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<HEAD> <TITLE>Checking Operator Precedence</TITLE> </HEAD> <BODY>
Checking Operator Precedence
<% double value; value = (10 + 24) / 2; out.println("The value = " + value); %> </BODY>
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Incrementing and Decrementing
<source lang="java">
<HTML>
<HEAD> <TITLE>Incrementing and Decrementing</TITLE> </HEAD> <BODY>
Incrementing and Decrementing
<% int int1 = 0, int2 = 0; out.println("int1 = " + int1 + "
"); out.println("int2 = " + int2 + "
");
int2 = int1++; out.println("After int2 = int1++:" + "
"); out.println("int1 = " + int1 + "
"); out.println("int2 = " + int2 + "
"); int value3 = 0, value4 = 0; out.println("
"); out.println("value3 = " + value3 + "
"); out.println("value4 = " + value4 + "
"); value4 = ++value3; out.println("After value4 = ++value3:" + "
"); out.println("value3 = " + value3 + "
"); out.println("value4 = " + value4 + "
"); %> </BODY>
</HTML></source>
Multiplication and Division
<source lang="java">
<HTML>
<HEAD> <TITLE>Multiplication and Division</TITLE> </HEAD> <BODY>
Multiplication and Division
<% double double1 = 6, double2 = 8, double3 = 5, doubleResult; doubleResult = double1 * double2 / double3; out.println("6 * 8 / 5 = " + doubleResult); %> </BODY>
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Using Logical Operators
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<HEAD> <TITLE>Using Logical Operators</TITLE> </HEAD> <BODY>
Using Logical Operators
<% int temperature = 70; if (temperature < 90 && temperature > 60) { out.println("Picnic time!"); } %> </BODY>
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Using Operators
<source lang="java">
<HTML>
<HEAD> <TITLE>Using Operators</TITLE> </HEAD> <BODY>
Using Operators
<% int operand1 = 23, operand2 = 4, product; product = operand1 * operand2; out.println(operand1 + " * " + operand2 + " = " + product); %> </BODY>
</HTML></source>
Using Relational Operators
<source lang="java">
<HTML>
<HEAD> <TITLE>Using Relational Operators</TITLE> </HEAD> <BODY>
Using Relational Operators
<% int temperature = 70; if (temperature < 80) { out.println("Just right."); } %> </BODY>
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