Split Integer Array Into Two Equal Sum Sub Arrays

package org.wesome.dsalgo;

public class EqualSumSplit {
    static int equalSumSplit(int arr[]) {
        int size = arr.length;
        int sumFromRight = 0;
        int sumFromLeft = 0;
        int result = -1;

        for (int i = 0; i < size; i++) {
            sumFromLeft += arr[i];
        }
        for (int indx = size - 1; indx >= 0; indx--) {
            sumFromRight = sumFromRight + arr[indx];
            sumFromLeft = sumFromLeft - arr[indx];
            if (sumFromRight == sumFromLeft) {
                result = indx;
                break;
            }
        }

        if (result == -1 || result == size) {
            System.out.println("Array cannot be split into equal sum sub array");
        } else {
            for (int i = 0; i < result; i++) {
                System.out.print(arr[i] + " ");
            }
            System.out.print(" and ");
            for (int i = result; i < size; i++) {
                System.out.print(arr[i] + " ");
            }
            System.out.println("\n");
        }
        return result;
    }
}

package org.wesome.dsalgo;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

import static org.wesome.dsalgo.EqualSumSplit.equalSumSplit;

public class EqualSumSplitTest {
    @Test
    void equalSumSplitTest1() {
        int arr[] = {1, 2, 3, 4, 5, 5};
        Assertions.assertEquals(4, equalSumSplit(arr));
    }

    @Test
    void equalSumSplitTest2() {
        int[] arr = new int[]{3, 4, -1, 8};
        Assertions.assertEquals(2, equalSumSplit(arr));
    }

    @Test
    void equalSumSplitTest3() {
        int[] arr = new int[]{-3, 1, -1, -1};
        Assertions.assertEquals(2, equalSumSplit(arr));
    }

    @Test
    void equalSumSplitTest4() {
        int[] arr = new int[]{-3, 1, 0, -1, -1};
        Assertions.assertEquals(3, equalSumSplit(arr));
    }

    @Test
    void equalSumSplitTest5() {
        int[] arr = new int[]{2, 3, 7, 6, 8, -1, -10, 15};
        Assertions.assertEquals(7, equalSumSplit(arr));
    }
}

plugins {
    id 'java'
    id "io.freefair.lombok" version "6.2.0"
}

group = 'org.wesome'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = JavaVersion.VERSION_1_8

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter:5.6.2'
}

test {
    useJUnitPlatform()
}