Array programs in Java

Vinnu Mukhi

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May 27, 2021

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Check Array is Sorted or not!

public class Arrays {
    public static void main(String[] args) {
int [] array= {1,2,3,4,5,6,7};
        boolean isSorted=true;       //by default isSorted is True
        for(int i=0;i< array.length-1;i++){
            if(array[i]>array[i+1]){
                isSorted=false;
                break;
            }
        }
        if(isSorted){
            System.out.println("The Array is sorted");
        }
        else {
            System.out.println("The array is not sorted");
        }
    }
}Output: The Array is sorted

Calculate the Sum and Find the Average value of it

public class Arrays {
    public static void main(String[] args) {float [] marks= {10.5f ,30.5f ,40.5f ,50.7f};
float sum=0;
for (float element:marks){
    sum= sum+element;
   }
System.out.println("The Value of Sum is = "+ sum/marks.length);
   }
}Output: The Value of Sum is = 33.05

Add the 2x3 Size matrix and print

public class Arrays {
    public static void main(String[] args) {int[][] mat1 = {{2, 3, 4},
        {2, 3, 4}};
int[][] mat2 = {{4, 3, 2},
        {2, 3, 4}};
int[][] result = {{0, 0, 0}, {0, 0, 0}};
for (int i = 0; i < mat1.length; i++) {  //row numbers of time
    for (int j = 0; j < mat1[i].length; j++) {   //column numbers of time
        System.out.format("Setting value for i=%d and j=%d\n", i, j);
        result[i][j] = mat1[i][j] + mat2[i][j];
    }
}
for (int i = 0; i < mat1.length; i++) {        //row numbers 
    for (int j = 0; j < mat1[i].length; j++) {  //column numbers         System.out.print(result[i][j]+ " ");
        result[i][j] = mat1[i][j] + mat2[i][j];

    }
    System.out.println("");                 //For line Change 
         }
     }
 }Output: Setting value for i=0 and j=0
Setting value for i=0 and j=1
Setting value for i=0 and j=2
Setting value for i=1 and j=0
Setting value for i=1 and j=1
Setting value for i=1 and j=2
6 6 6 
4 6 8