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Java Practice It | Exercise 4.20: numUnique | if/else, method basics, return

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Exercise 4.20 (numUnique) Java Tutorial || Practice-It

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Coding

Java Practice It | Exercise 4.21: perfectNumbers | if/else, method basics, return

491 views • Live Report

IMPORTANT BIT: We have an initial part to do, go through and find all the perfect numbers. Then, encased in this we actually ...

Java Practice It || 4.3 season || if/ else/ else if statements, String return method, int parameters

1,610 views • Live Report

Problem: Question: Write a

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Introduction of Java Practice It Exercise 4 20 Numunique If Else Method Basics Return

IMPORTANT BIT: We have an initial part to do, go through and find all the perfect numbers. Then, encased in this we actually ... Problem: Question: The following code attempts to ...

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Last Updated: June 14, 2026

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Java Practice It | Exercise 4.20: numUnique | if/else, method basics, return

Exercise 4.20 Java Tutorial || Practice-It

Coding

Java Practice It | Exercise 4.21: perfectNumbers | if/else, method basics, return

IMPORTANT BIT: We have an initial part to do, go through and find all the perfect numbers. Then, encased in this we actually ...

Java Practice It || 4.3 season || if/ else/ else if statements, String return method, int parameters

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/e3-season Question: Write a

Java Practice It || 4.23 lastFirst || char, method basics, return, String

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/s23-lastFirst Question: Write a

Java Practice It | Exercise 4.19: quadrant | if/else, method basics, return

Java Practice It || 4.24 secondHalfLetters || char class, int method basics, return, String

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/s24-secondHalfLetters Question: Write a

Java Practice It | 4.6 printRange| if/ else/ else if statements, int return method, for loops

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/e6-printRange Question: Write a

Java Practice It || 4.27 medianOf3 || if/else, nested if/else, method with int return, logic

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/s27-medianOf3 Question: The following

Java Practice It || 4.20 charMystery || char classes, method basics, for loop

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/s20-charMystery Question: What output is produced by ...

Java Practice It | Exercise 4.7: xo | for loops if/else method basics nested loops

Java Practice It || 4.29 quadraticPreconditions || errors, if/else, method, void return

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/s29-printNumOdd Question: Consider the following ...

Java Practice It || 4.2 repl || for loop, String and int parameter method, String return

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/e2-repl Question: Write a

Java Practice It | 4.5 daysInMonth | for loop, int return method, int parameters

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/e5-pow Question: Write a

Java Practice It | 4.4 daysInMonth | if/ else/ else if statements, int return method, int parameters

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/e4-daysInMonth Question: Write a

Java Practice It || 4.28 quadraticPreconditions || exceptions, Math, method basics, int return

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/s28-quadraticPreconditions Problem 3.8: ...

Java Practice It || 5.17 contains || method with boolean return and string, char, debugging

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter5/s17-contains Question: The following code attempts to ...

Java Practice It | Exercise 5.20: digitRange | if, else, Boolean logic, method basics, return

Java Practice It | Exercise 5.21: swapDigitPairs | if, else, Boolean logic, method basics, return

Java Practice It || 4.1 fractionSum || for loop, summation, int method, double return

Problem: https://practiceit.cs.washington.edu/problem/view/bjp5/chapter4/e1-fractionSum Question: Write a