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Controlling Program Flow
Chapter 3 Controlling Program Flow CCE JMU CHINA
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What’s Inside 1、Operators 2、Execution control CCE JMU CHINA
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Comments • The three permissible styles of comment in a Java technology program are: // comment on one line /* comment on one or more lines */ /** documentation comment */ CCE JMU CHINA
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Semicolons, Blocks, and White Space
• A statement is one or more lines of code terminated by a semicolon (;): Example: totals = a + b + c + d + e + f; CCE JMU CHINA
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Semicolons, Blocks, and White Space
• A block is a collection of statements bound by opening and closing braces: { x = y + 1; y = x + 1; } CCE JMU CHINA
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Semicolons, Blocks, and White Space
• You must use a block in a class definition: public class MyDate { private int day; private int month; private int year; } • You can nest block statements. • Any amount of white space is allowed in a Java program. CCE JMU CHINA
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if & if-else CCE JMU CHINA
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while & for CCE JMU CHINA
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