102 lines
2.6 KiB
Java
102 lines
2.6 KiB
Java
package test;
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class TestPrimitiveArray {
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static boolean testBool() {
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boolean[] a = {true, false, true, false, true};
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int sum = 0;
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for (int i = 0; i < a.length; i++) {
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if (a[i] == true) {
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sum += 1;
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} else {
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sum -= 1;
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}
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}
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return sum == 1;
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}
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static boolean testByte() {
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byte[] a = {1, -1, 3, 4};
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int sum = 0;
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for (int i = 0; i < a.length; i++) {
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sum += a[i];
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}
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return sum == 7;
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}
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static boolean testChar() {
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char[] a = {'a', 'b', 'c', 'd', 200};
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return
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a[0] == 'a' &&
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a[1] == 'b' &&
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a[2] == 'c' &&
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a[3] == 'd' &&
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a[4] > 0;
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}
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static boolean testShort() {
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short[] a = {-1234, 1234, 300, 400};
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int sum = 0;
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for (int i = 0; i < a.length; i++) {
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sum += a[i];
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}
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return sum == 700;
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}
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static boolean testInt() {
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int[] a = {-12345678, 12345678, 3000000, 4000000};
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int sum = 0;
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for (int i = 0; i < a.length; i++) {
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sum += a[i];
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}
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return sum == 7000000;
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}
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static boolean epsilon(float a, float b) {
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return Math.abs(a - b) < 0.0001f;
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}
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static boolean testFloat() {
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float[] a = {1.2f, -1.2f, 3.4f, 5.6f};
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float sum = 0;
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for (int i = 0; i < a.length; i++) {
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sum += a[i];
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}
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return epsilon(sum, 9.0f);
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}
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static boolean testLong() {
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long[] a = {800000000000L, -800000000000L, 300000000000L, 400000000000L};
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long sum = 0;
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for (int i = 0; i < a.length; i++) {
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sum += a[i];
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}
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return sum == 700000000000L;
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}
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static boolean testDouble() {
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double[] a = {9007199254740900.0, -1.0};
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double sum = 0;
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for (int i = 0; i < a.length; i++) {
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sum += a[i];
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}
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return sum == 9007199254740899.0;
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}
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public static void main() {
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System.out.print("bool: ");
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System.out.println(testBool());
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System.out.print("byte: ");
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System.out.println(testByte());
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System.out.print("char: ");
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System.out.println(testChar());
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System.out.print("short: ");
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System.out.println(testShort());
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System.out.print("int: ");
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System.out.println(testInt());
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System.out.print("long: ");
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System.out.println(testLong());
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System.out.print("double: ");
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System.out.println(testDouble());
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}
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}
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