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Nested Loops in JAVA

Quiz by Mr Le

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5 questions
Show answers
  • Q1
    In Java, what is the syntax for creating a nested loop?
    for (int i = 0; i < 5; i++) { while (int j = 0; j < 3; j++) { } }
    while (int i = 0; i < 5; i++) { for (int j = 0; j < 3; j++) { } }
    for (int i = 0; i < 5; i++) { for (int j = 0; j < 3; j++) { } }
    while (int i = 0; i < 5; i++) { while (int j = 0; j < 3; j++) { } }
    30s
  • Q2
    What is the purpose of using nested loops in Java programming?
    To execute a single loop multiple times.
    To iterate over multiple dimensions of data or perform repeated actions within a loop.
    To terminate the program when a certain condition is met.
    To break out of the loop if an error occurs.
    To declare variables with different data types.
    30s
  • Q3
    What is the correct syntax for a nested if-else statement in Java?
    if (condition1) { if (!condition2) { // inner condition } else { // inner else } } else { // outer else }
    if (condition1) { if (condition2) { // inner condition } else { // inner else } } else { // outer else }
    if (condition1) { else { // inner condition } else { // outer else }
    if (condition1) { if (condition2) { // inner condition } } else { // outer else }
    if (condition1) { if (condition2) { // inner condition } else if (condition3) { // new condition } } else { // outer else }
    30s
  • Q4
    What is the correct way to implement a nested while loop in Java?
    for (int i = 0; i < 5; i++) { int j = 0; while (j < 3) { // nested loop logic } }
    if (condition1) { while (condition2) { // inner loop logic } }
    while (condition1) { // outer loop logic while (condition2) { // inner loop logic } }
    while (condition1) { while (condition2) { // inner loop logic } }
    while (condition1) { while (!condition2) { // inner loop logic } }
    30s
  • Q5
    What is the correct syntax for a nested for-each loop in Java?
    for (int[] row : matrix) { for (int num : row) { // inner loop logic } }
    for (int[] row : matrix) { for (int col : row) { // inner loop logic } }
    for (int[] col : matrix) { for (int num : col) { // inner loop logic } }
    for (int num : row) { for (int[] row : matrix) { // inner loop logic } }
    for (int num : matrix) { for (int[] row : matrix) { // inner loop logic } }
    30s

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