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Home/Coding/Java Master Course/Fundamentals

Jagged Array

Last Updated : 26 May, 2026

title: Jagged Array in Java

Fundamentals47 words4 headingsExamples included

title: Jagged Array in Java description: Unequal rows wala 2D array

Jagged array ek 2D array hai jisme har row ki alag length ho sakti hai.

Create karna

int[][] jagged = new int[3][]; // 3 rows, columns fix nahi jagged[0] = new int[2]; // row 0 mein 2 elements jagged[1] = new int[4]; // row 1 mein 4 elements jagged[2] = new int[1]; // row 2 mein 1 element

Initialization

java exampleWoHoTech

int[][] jagged = {
    {1, 2},
    {3, 4, 5, 6},
    {7}
};

Traverse

for (int i = 0; i < jagged.length; i++) { for (int j = 0; j < jagged[i].length; j++) { System.out.print(jagged[i][j] + " "); } System.out.println(); } /* 1 2 3 4 5 6 7 */

Use Case

Sparse matrices (jahan sab elements nahi hote)
Triangle patterns
Memory efficient data storage

Exam Focus

Revise definitions, diagrams, examples, and short-answer points for Jagged Array.

Interview Use

Prepare one clear explanation, one practical example, and one common mistake for this Java topic.

Search Terms

java, java programming, core java, java master course, java notes, master, course, fundamentals

Related Java Topics

Continue learning this concept

FundamentalsArrays in Javatitle: Array Introduction FundamentalsArray Operationstitle: Array Operations FundamentalsArray Practice Programstitle: Array Programs FundamentalsMulti-Dimensional Arraystitle: Multi Dimensional Array FundamentalsOne Dimensional Arraytitle: One Dimensional Array FundamentalsArray Interview Questionstitle: Array Interview Questions

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