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Assignment Operator

Dive into the world of Java programming as we explore assignment, relational, and logical operators. This guide examines the nuances of variable assignments, operator behaviors, and evaluates expressions in Java. With examples like `a = b = c = 5` and various boolean evaluations, you'll learn not only whether the code compiles but also how to anticipate outputs. Gain insights into left and right associativity, and grasp how logical operators function. Perfect for Java learners looking to strengthen their understanding of basic Java syntax and operator precedence.

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Assignment Operator

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  1. Assignment Operator int a, b, c; a = b = c = 5; System.out.println( a + b + c ); Does it compile?

  2. Assignment Operator int a, b, c; a = b = c = 5; System.out.println( a + b + c ); What is the output?

  3. Assignment Operator int a, b, c; a = b = c = 5; System.out.println( a + b + c ); Output File Edit WindowHelp 15

  4. Assignment Operator int a, b, c; a = b = c = 5; System.out.println( a + b + c ); right associative

  5. Relational Operators관계 연산자 <, <=, >, >= 결과가 true / false evaluates to true / false

  6. Relational Operators int a = 1; boolean b = a < 2; value of b: true

  7. Relational Operators int a = 1; boolean b = a < 0; value of b: false

  8. Relational Operators int a = 1; boolean b = a <= 1; value of b: true

  9. Relational Operators int a = 1; int b = 2; int c = 3; boolean b = a < b < c; Does it compile?

  10. Relational Operators a < b < c left associative

  11. Relational Operators true < c ?

  12. Relational Operators int a = 1; int b = 2; int c = 3; boolean b = a < b &b< c;

  13. Boolean Logical Operators논리 연산자 !, ^, &, | 결과가 true / false evaluates to true / false

  14. ! – NOT (logical complement) boolean b; 1: b = ! true; 2: b = ! (5 > 2); in 1 and 2, value of b is ‘false’

  15. | - OR (inclusive or) one or the other (or both) are true

  16. | - OR (inclusive or) boolean b; 1: b = true | false; 2: b = false | true; 3: b = true | true; 4: b = false | false; true true true false

  17. ^ - XOR (exclusive or) One or the other, but not both, are true

  18. ^ - XOR (exclusive or) boolean b; 1: b = true ^ false; 2: b = false ^ true; 3: b = true ^ true; 4: b = false ^ false; true true false false

  19. & - AND both are true

  20. & - AND boolean b; 1: b = true & false; 2: b = false & true; 3: b = true & true; 4: b = false & false; false false true false

  21. & - AND boolean a = false; int i = 0; boolean b = a & i++ > 0; System.out.print( b + “ “ + i); Output File Edit WindowHelp false 1

  22. &&, || - shortcut operators단락 연산자 boolean a = false; int i = 0; boolean b = a &&i++ > 0; System.out.print( b + “ “ + i); Output File Edit WindowHelp false 0

  23. &&, || - shortcut operators boolean a = true; int i = 0; boolean b = a ||i++ > 0; System.out.print( b + “ “ + i); Output File Edit WindowHelp true 0

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