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loops

 
Greenhorn
Posts: 20
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Hi,
Could any of you help me in easiest way of cracking loops.
I am very confused.
I post some of the example questions below:


Thanks,
Kishore
 
kishore kovil
Greenhorn
Posts: 20
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Hi,
I am sorry.
I found that some of the content is misplaced by images.
I resend the code.

Question 16
class JMM110 {
public static void main (String[] args) {
int j = 0;
do for (int i = 0; i++ < 2
System.out.print(i);
while (j++ < 2);
}}

What is the result of attempting to compile and run the program?

a. Prints: 0001
b. Prints: 012
c. Prints: 012012
d. Prints: 012345
e. Prints: 001122
f. Prints: 1112
g. Prints: 111222
h. Prints: 121212
i. Run-time error
j. Compile-time error
k. None of the above

--------------------------------------------------------------------------------

Question 17
class JMM111 {
public static void main (String[] args) {
int j = 0;
for (int i = 0; i < 2; i++) do
System.out.print(i);
while (j++ < 2);
}}

What is the result of attempting to compile and run the program?

a. Prints: 0001
b. Prints: 012
c. Prints: 012012
d. Prints: 012345
e. Prints: 001122
f. Prints: 1112
g. Prints: 111222
h. Prints: 121212
i. Run-time error
j. Compile-time error
k. None of the above

--------------------------------------------------------------------------------

Question 18
class JMM112 {
public static void main (String[] args) {
int j = 0;
for (int i = 0; i++ < 2 do
System.out.print(i);
while (j++ < 2);
}}

What is the result of attempting to compile and run the program?

a. Prints: 0001
b. Prints: 012
c. Prints: 012012
d. Prints: 012345
e. Prints: 001122
f. Prints: 1112
g. Prints: 111222
h. Prints: 121212
i. Run-time error
j. Compile-time error
k. None of the above

--------------------------------------------------------------------------------

Question 19
class JMM113 {
public static void main (String[] args) {
int i = 0, j = 0, k = 0;
do while (i++ < 3)
System.out.print(k++);
while (j++ < 3);
}}

What is the result of attempting to compile and run the program?

a. Prints: 0001
b. Prints: 012
c. Prints: 012012
d. Prints: 012345
e. Prints: 001122
f. Prints: 1112
g. Prints: 111222
h. Prints: 121212
i. Run-time error
j. Compile-time error
k. None of the above

--------------------------------------------------------------------------------

Question 20
class JMM114 {
public static void main (String[] args) {
int i = 0, j = 0;
while (i++ < 3) do
System.out.print(j);
while (j++ < 3);
}}

What is the result of attempting to compile and run the program?

a. Prints: 0001
b. Prints: 001122
c. Prints: 012012
d. Prints: 012345
e. Prints: 1112
f. Prints: 111222
g. Prints: 121212
h. Run-time error
i. Compile-time error
j. None of the above

--------------------------------------------------------------------------------

Question 21
class JMM115 {
static int m1(String s, int i) {
System.out.print(s + i);
return i;
}
public static void main (String[] args) {
int i = 0, j = 0, k = 0;
do while (m1("i", ++i) < 2)
System.out.print("k" + ++k);
while (m1("j", ++j) < 2);
}}

What is the result of attempting to compile and run the program?

a. Prints: i1k1i2k2j1i3j2
b. Prints: i1k1i2k2j1i1k1i2k2j2
c. Prints: i1k1i2j1i3j2
d. Run-time error
e. Compile-time error
f. None of the above

--------------------------------------------------------------------------------

Question 22
class JMM116 {
static int m1(String s, int i) {
System.out.print(s + i);
return i;
}
public static void main (String[] args) {
int j = 0;
for (int i = m1("A",0); m1("B",i) < 2; m1("C",++i)) {
m1("J",++j);
}
}}

What is the result of attempting to compile and run the program?

a. Prints: A0B0C1J1B1C2J2B2
b. Prints: A0B0J1C1B1J2C2B2
c. Prints: A0B0J1C1A1B1J2C2A2B2
d. Run-time error
e. Compile-time error
f. None of the above

--------------------------------------------------------------------------------

Question 23
class JMM117 {
public static void main (String[] args) {
int i = 0, j = 9;
do {
i++;
if (j-- < i++) {break;}
} while (i < 5);
System.out.print(i + "," + j);
}}

What is the result of attempting to compile and run the program?

a. Prints: 5,4
b. Prints: 6,3
c. Prints: 6,6
d. Prints: 7,2
e. Run-time error
f. Compile-time error
g. None of the above

--------------------------------------------------------------------------------

Question 24
class JMM118 {
public static void main (String[] args) {
int i = 0, j = 9;
while (i++ <= j--) {i++; if (j < 5) break;}
System.out.print(i + "," + j);
}}

What is the result of attempting to compile and run the program?

a. Prints: 4,7
b. Prints: 6,6
c. Prints: 7,2
d. Prints: 8,5
e. Prints: 9,4
f. Run-time error
g. Compile-time error
h. None of the above

--------------------------------------------------------------------------------

Question 25
class JMM119 {
public static void main (String[] args) {
int i = 0, j = 9;
do {
if (j < 4) {break;} else if (j-- < 7) {continue;}
i++;
} while (i++ < 7);
System.out.print(i + "," + j);
}}

What is the result of attempting to compile and run the program?

a. Prints: 4,7
b. Prints: 6,6
c. Prints: 6,5
d. Prints: 6,4
e. Prints: 7,5
f. Prints: 8,4
g. Run-time error
h. Compile-time error
i. None of the above

--------------------------------------------------------------------------------

Question 26
class JMM120 {
public static void main (String args[]) {
int i = 0, j = 0, k = 0;
label1:
for (; { i++;
label2:
do {
k = i + j;
switch (k) {
case 0: continue label2;
case 1: continue label1;
case 2: break;
case 3: break label2;
case 4: break label1;
default: break label1;
}
} while (++j<5);
}
System.out.println(i + "," + j);
}}

What is the result of attempting to compile and run the program?

a. Prints: 2,1
b. Prints: 2,2
c. Prints: 3,1
d. Prints: 3,2
e. Prints: 3,3
f. Run-time error
g. Compile-time error
h. None of the above

--------------------------------------------------------------------------------

Question 27
class JMM121 {
public static void main (String args[]) {
int h = 0, i = 0, j = 0, k = 0;
label1:
for (; { h++;
label2:
do { i++; k = h + i + j;
switch (k) {
default: break label1;
case 1: continue label1;
case 2: break;
case 3: break label2;
case 4: continue label2;
case 5: continue label1;
}
} while (++j < 5);
}
System.out.println(h + "," + i + "," + j);
}}

What is the result of attempting to compile and run the program?

a. Prints: 1,2,3
b. Prints: 1,3,2
c. Prints: 2,2,2
d. Prints: 2,4,1
e. Prints: 2,4,2
f. Run-time error
g. Compile-time error
h. None of the above
 
Rancher
Posts: 43028
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Let's discuss this in this duplicate thread.
 
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the value of filler advertising in 2021
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