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ParameterMysterySection2

Language/Type: Java parameters return

The following console program uses parameters and produces eight lines of output. What are they? 

public class ParameterMysterySection2 {
    public static void main(String[] args) {
        int a = 137;
        int b = 42;

        System.out.println("a = " + a);
        foo(b);
        System.out.println("a = " + a);
        System.out.println("b = " + b);

        a = bar(b, a + b);  
        System.out.println("a = " + a);
        a = bar(a, b);  
        System.out.println("a = " + a);
    }

    public static void foo(int a) {
        System.out.println("a = " + a);
        a = 160;
    }

    public static int bar(int c, int b) {
        int d = b - c;
        System.out.println("d = " + d);
        return d % 10;
    }
}
line 1
line 2
line 3
line 4
line 5
line 6
line 7
line 8

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