how to print a 2d array in java
for (int row = 0; row < arr.length; row++)//Cycles through rows
{
for (int col = 0; col < arr[row].length; col++)//Cycles through columns
{
System.out.printf("%5d", arr[row][col]); //change the %5d to however much space you want
}
System.out.println(); //Makes a new row
}
//This allows you to print the array as matrixarrays sort 2d array java
Arrays.sort(myArr,(double[] a,double[] b)->{
//here multiple lines of code can be placed
return a[0]-b[0];
});Java 2d array initialization
class TwoDimensionalArray {
public static void main(String[] args) {
String[][] salutation = {
{"Mr. ", "Mrs. ", "Ms. "},
{"Kumar"}
};
// Mr. Kumar
System.out.println(salutation[0][0] + salutation[1][0]);
// Mrs. Kumar
System.out.println(salutation[0][1] + salutation[1][0]);
}
}
The output from this program is:
Mr. Kumar
Mrs. Kumarhow to initialize one dimensional array in java
int[] a; // valid declaration
int b[]; // valid declaration
int[] c; // valid declarationCopyright © 2021 Codeinu
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