PFB1/chapter5_code_to_copy.txt at master · TimLavers/PFB1 · GitHub

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P36
package pfb.basics

fun main(args: Array<String>) {
    val x = 7 + 5
    println(x)
}


package pfb.basics

fun main(args: Array<String>) {
    for (i in 1..10) {
        //Loop body goes here
    }
}

P37
package pfb.basics

fun main(args: Array<String>) {
    for (i in 1..10) {
        val x = 7 * i
        println("7 times $i is $x")
    }
}


package pfb.basics

fun main(args: Array<String>) {
    for (s in 1..10) {
        //Print out the s times table
        println()
    }
}


P38
package pfb.basics

fun main(args: Array<String>) {
    for (s in 1..10) {
        for (i in 1..10) {
            //Define x to be s times i
            //Print out s, i and the result
        }
        println()
    }
}


package pfb.basics

fun main(args: Array<String>) {
    for (i in 1..20) {
        val div = i / 5
        val rem = i % 5
        println("i: $i, div: $div, rem: $rem")
    }
}


fun tileColors(): Array<Array<Int>> {
    val shades = Array<Array<Int>>(16) {
        Array<Int>(16) { 0 }
    }
    for (row in 0..15) {
        for (col in 0..15) {
            shades[row][col] = row * col
        }
    }
    return shades
}


P40
fun tileColors(): Array<Array<Int>> {
    val shades = Array<Array<Int>>(16) {
        Array<Int>(16) { 0 }
    }
    for (row in 0..15) {
        for (col in 0..15) {
            val remainder = row % 2
            if (remainder == 0) {
                shades[row][col] = 0
            } else {
                shades[row][col] = 255
            }
        }
    }
    return shades
}

P41
fun tileColors(): Array<Array<Int>> {
    val shades = Array<Array<Int>>(7) {
        Array<Int>(7) { 0 }
    }
    for (row in 0..6) {
        for (col in 0..6) {
            val remainder = (row * col) % 2
            if (remainder == 0) {
                shades[row][col] = 255
            } else {
                shades[row][col] = 0
            }
        }
    }
    return shades
}

----------------------------------
package pfb.basics

fun main(args: Array<String>) {
    val x = 7 - 5
    println(x)
}


package pfb.basics

fun main(args: Array<String>) {
    val x = 7 * 5
    println(x)
}


P42
package pfb.basics

fun main(args: Array<String>) {
    for (i in 1..10) {
        val x = 7 * i
        println(x)
    }
}


package pfb.basics

fun main(args: Array<String>) {
    for (s in 1..10) {
        for (i in 1..10) {
            val x = s * i
            print("$s*$i=$x\t")
        }
        println()
    }
}


fun tileColors(): Array<Array<Int>> {
    val shades = Array<Array<Int>>(16) {
        Array<Int>(16) { 0 }
    }
    for (row in 0..15) {
        for (col in 0..15) {
            val remainder = (row + col) % 2
            if (remainder == 0) {
                shades[row][col] = 0
            } else {
                shades[row][col] = 255
            }
        }
    }
    return shades
}


P43
fun tileColors(): Array<Array<Int>> {
    val shades = Array<Array<Int>>(16) {
        Array<Int>(16) { 0 }
    }
    for (row in 0..15) {
        for (col in 0..15) {
            val remainder = (row + col) % 2
            if (remainder == 0) {
                shades[row][col] = 0
            } else {
                shades[row][col] = 255
            }
        }
    }
    return shades
}


fun tileColors(): Array<Array<Int>> {
    val shades = Array<Array<Int>>(8) {
        Array<Int>(8) { 0 }
    }
    for (row in 0..7) {
        for (col in 0..7) {
            val remainder = (row + col) % 2
            if (remainder == 0) {
                shades[row][col] = 255
            } else {
                shades[row][col] = 0
            }
        }
    }
    return shades
}