Penyata Sementara

• teruskan — melangkau pelaksanaan seluruh badan gelung dalam lelaran semasa dan melompat ke penilaian ungkapan Boolean pernyataan sementara. Jika ungkapan bernilai benar, maka gelung diteruskan.
• putus — segera menamatkan pelaksanaan lelaran semasa dan memindahkan kawalan ke pernyataan pertama selepas gelung. Oleh itu, pernyataan ini menamatkan pelaksanaan gelung semasa. Kami akan mempertimbangkannya dengan lebih terperinci dalam artikel seterusnya.

while (numberOfApplesInBowl > 0) {
    apple = bowl.grabNextApple();
    numberOfApplesInBow--; // "--" is the decrement operator, which reduces the number of apples by one
    if (apple.isBad()) { // This method returns true for rotten apples
        apple.throwInGarbage();
        continue; // Continue the loop. Jump to evaluation of numberOfApplesInBowl > 0
    }
    arrangeInPie(apple.peel().slice());
}

public static void main(String[] args) {
    int sum = 0;  // Total amount
    int i = 0;  // Initial number in the series
    int count = 20;  // Number of numbers
    while (i <= count) {
        i++;  // Get the next number — "i++" is equivalent to "i = i + 1"
        if (i * i <= count)  // If the square of the number is less than
            continue;  // the number of numbers, then we won't calculate the sum
                            // Jump to the next number in the loop
        sum += i * i * i;  // Otherwise, we calculate the sum of the cubes of numbers
    }  // "sum += i * i * i" is notation that is equivalent to "sum = sum + i * i * i"
    System.out.println(sum);  // Print the result
}

Gelung tak terhingga

while (true) {
    // Loop body 
}

public static void main(String[] args) {
    int base = 3; // The number that will be exponentiated
    int result = 1; // The result of exponentiation
    int exponent = 1; // The initial exponent
    while (true) {
        result = result * base;
        System.out.println(base + " raised to the power of " + exponent + " = " + result);
        exponent++;
        if (exponent > 10)
            break; // Exit the loop
    }
}

3 raised to the power of 1 = 3
3 raised to the power of 2 = 9
3 raised to the power of 3 = 27
3 raised to the power of 4 = 81
3 raised to the power of 5 = 243
3 raised to the power of 6 = 729
3 raised to the power of 7 = 2187
3 raised to the power of 8 = 6561
3 raised to the power of 9 = 19683
3 raised to the power of 10 = 59049
Process finished with exit code 0

Gelung bersarang

1. Sekiranya terdapat epal dalam mangkuk, maka kami melaksanakan langkah 1.1 hingga 1.4:

   1. 1.1. Ambil sebiji epal
   2. 1.2. Kupas dan potong menjadi kepingan
   3. 1.3. Susun hirisan epal dalam kerak pai dalam kuali
   4. 1.4. Kembali ke langkah 1.

1. Bilangan kepingan = 0

2. Selagi bilangan kepingan adalah < 12, maka lakukan langkah 2.1 hingga 2.3

   1. 2.1. Potong satu lagi kepingan epal
   2. 2.2. Bilangan kepingan++
   3. 2.3. Kembali ke langkah 2

1. Jika terdapat epal dalam mangkuk, maka kami melaksanakan langkah 1.1 hingga 1.6:

   1. 1.1. Ambil sebiji epal
   2. 1.2. Kupas ia
   3. 1.3. Bilangan kepingan = 0
   4. 1.4. Selagi bilangan kepingan adalah < 12, maka lakukan langkah 1.4.1 hingga 1.4.3
   1. 1.4.1. Potong satu lagi kepingan epal
   2. 1.4.2. Bilangan kepingan++
   1.4.3. Kembali ke langkah 1.4
   5. 1.5. Susun hirisan epal dalam kerak pai dalam kuali
   6. 1.6. Kembali ke langkah 1.

 public static void main(String[] args) {
    // Print the second factors in a row
    System.out.println("    2  3  4  5  6  7  8  9"); 
    int i = 2;  // Assign the first factor to the variable
    while (i < 10) {  // First loop: execute as long as the first factor is less than 10
        System.out.print(i + " | ");  // Print the first factor at the beginning of the line
        int j = 2;  // The starting value of the second factor
        while (j < 10) { // Second loop: execute as long as the second factor is less than 10
            int product = i * j;  // Calculate the product of the factors
            if (product < 10)  // If the product is a single digit, then we print two spaces after the product
                System.out.print(product + "  ");
            else  // Otherwise, print the product and one space after it
                System.out.print(product + " ");
            j++;  // Increment the second factor by one
        }  // Go to the beginning of the second loop, i.e. "while (j < 10)"
        System.out.println();  // Move to the next line on the console
        i++;  // Increment the first factor by one
    } // Go to the beginning of the first loop, i.e. "while (i < 10)"
}

    2  3  4  5  6  7  8  9

2 | 4  6  8  10 12 14 16 18 

3 | 6  9  12 15 18 21 24 27

4 | 8  12 16 20 24 28 32 36

5 | 10 15 20 25 30 35 40 45

6 | 12 18 24 30 36 42 48 54

7 | 14 21 28 35 42 49 56 63

8 | 16 24 32 40 48 56 64 72

9 | 18 27 36 45 54 63 72 81

Process finished with exit code 0