For Loops and While Loops Quizzes

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final int MIN = 10, final MAX = 20; int num = 15; for (int count1=1; count1 <= 7; count1++) { for (int count2=1; count2 <= 5; count2++) System.out.print ("#"); System.out.println(); }

##### ##### ##### ##### ##### ##### #####

What is returned by the call go( 3.5 )? public static double go( double w ) { while(w > 0) { w = w - 0.75; } return w; }

-0.25

int x=-2; while(x<9) { x++; System.out.print(x + " "); }

-1 0 1 2 3 4 5 6 7 8 9

for(int i=-3; i<19; i=i+3) { out.print(i + " "); }

-3 0 3 6 9 12 15 18

int k=5; String s=""; while(k>0){ s=k+" "+s; k--; } System.out.print(s);

1 2 3 4 5

What is returned by the call go( 4 )? public static int go(int x) { int q=0; while( x > 0) { q = q + x; x = x - 1; } return q;

10

int b=3; String list=""; while(b<10) { b=b+2; if(b%2==1) list=b+" "+list; } System.out.print(list);

11 9 7 5

final int MIN = 10, final MAX = 20; int num = 15; for (int value=num; value <= MAX; value++) 15 System.out.println (value);

15 16 17 18 19 20

for(int j=17; j>-2; j=j-2) { out.print(j + " "); }

17 15 13 11 9 7 5 3 1 -1

for(int s=1; s<19; s++) { total=total+s; } out.println(total);

171

What is output by the code below? int j=3, ans=0; while(j<7) { ans+=j; j++; } System.out.print( ans );

18

for(int x=20; x<50; x=x+3) { out.print(x + " "); }

20 23 26 29 32 35 38 41 44 47

What is output by the code below? int j=1; while(j<8) { j++; System.out.print( j ); }

2345678

int j=21, x=0; while(j>0) { if( j % 2 == 0) x++; j=j-3; } System.out.print( x );

3

int m=1, total=0; while(m<9){ total=total+m; m++; } System.out.print(total );

36

for(int m=37; m>0; m=m-4) { out.print(m + " "); }

37 33 29 25 21 17 13 9 5 1

What is output by the code below? int j=11, x=0; while(j>0) { x++; j=j-3; } System.out.print( x );

4

What is returned by the call go(8) ? public static int go(int x) { int cnt = 0; while(x > 0) { x = x / 2; cnt = cnt + 1; } return cnt; }

4

int n=23, z=0; while( n > 16 ) { z = z + n; n-=4; } System.out.print( z );

42

What is output by the code below? int n=13, z=0; while( n > 4 ) { z += n; n-=2; } System.out.print( z );

45

int t=2, x=0; while(t < 12) { x += t; t = t + 1; } System.out.print( x );

65

int z=2, sum=0; while(z<12){ z++; sum=sum+z; } System.out.print(sum);

75


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